Report_Status
Probable Cause 7341
NaN 2539
The pilot's failure to maintain directional control during the landing roll. 56
A loss of engine power for undetermined reasons. 52
The pilot's failure to maintain directional control during landing. 44
A total loss of engine power for undetermined reasons. 39
The loss of engine power for undetermined reasons. 29
The pilot’s failure to maintain directional control during the landing roll.\r\n\r 21
The pilot’s failure to maintain directional control during the landing roll. 19
The pilot's improper recovery from a bounced landing. 19
The pilot's failure to maintain directional control during takeoff. 17
The pilot's failure to maintain directional control of the airplane during landing. 17
The pilot’s failure to maintain directional control during landing. 16
The student pilot's improper recovery from a bounced landing. 16
The pilot's improper landing flare, which resulted in a hard landing. 16
The pilot's failure to maintain directional control during the takeoff roll. 15
A partial loss of engine power for undetermined reasons. 12
The pilot’s failure to maintain directional control during landing.\r\n\r 12
The pilot's improper fuel management, which resulted in a loss of engine power due to fuel exhaustion. 11
The student pilot's improper flare, which resulted in a hard landing. 10
The pilot’s improper landing flare, which resulted in a hard landing.\r\n\r 10
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop. 9
The pilot's failure to maintain directional control while landing. 9
The pilot's selection of unsuitable terrain for landing. 9
The pilot’s improper fuel management, which resulted in a loss of engine power due to fuel exhaustion. 9
The pilot's loss of directional control during landing. 9
The student pilot's failure to maintain directional control during takeoff. 9
The pilot’s failure to maintain directional control during takeoff. 8
The pilot's failure to maintain directional control. 8
The pilot's improper fuel management, which resulted in a loss of engine power due to fuel starvation. 7
The total loss of engine power for undetermined reasons. 7
The pilot's improper landing flare and inadequate recovery from a bounced landing. 7
The pilot's failure to maintain directional control during the landing. 7
The student pilot's failure to maintain directional control during landing. 7
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion. 7
The pilot's failure to maintain directional control of the airplane during the landing roll. 7
The pilot's failure to maintain directional control while landing with a crosswind. 7
The pilot’s failure to maintain directional control during landing.\r 7
an inadvertent encounter with clear air turbulence. 7
The pilot's improper flare, which resulted in a hard landing. 7
The pilot's inadequate flare, which resulted in a hard landing. 7
A total loss of engine power for reasons that could not be determined based on the available information.\r 7
The pilot's improper landing flare. 6
The pilot’s improper landing flare, which resulted in a bounced landing.\r\n\r 6
The pilot did not maintain directional control during the landing roll. 6
The student pilot’s improper landing flare, which resulted in a hard landing.\r 6
Undetermined. 6
A total loss of engine power for undetermined reasons.\r 6
A loss of engine power for reasons that could not be determined based on the available information. 6
A loss of control for undetermined reasons. 6
A total loss of engine power for reasons that could not be determined based on the available information. 6
The pilot’s loss of directional control during the landing roll, which resulted in a runway excursion. 6
The pilot's failure to maintain directional control during landing, which resulted in a ground loop.\r 6
A partial loss of engine power for reasons that could not be determined based on the available information.\r 6
The pilot's failure to maintain directional control during landing.\r 6
The pilot's inadequate recovery from a bounced landing. 6
The total loss of engine power for reasons that could not be determined based on the available evidence.\r 6
The pilot’s improper recovery from a bounced landing. 6
The pilot's inadequate landing flare, which resulted in a hard landing. 6
The pilot's failure to maintain aircraft control during takeoff. 6
The partial loss of engine power for undetermined reasons. 5
Loss of engine power for undetermined reasons. 5
The pilot's failure to maintain directional control during the landing rollout. 5
The pilot’s failure to maintain directional control during the landing roll.\r 5
The student pilot’s improper recovery from a bounced landing. 5
The pilot's improper landing flare which resulted in a hard landing. 5
The student pilot's inadequate recovery from a bounced landing. 5
The pilot’s improper fuel management, which resulted in a loss of engine power due to fuel starvation. 5
The pilot’s improper flare, which resulted in a hard landing. 5
The student pilot's improper landing flare, which resulted in a hard landing. 5
The pilot's failure to maintain directional control during the landing roll in crosswind conditions. 5
The pilot's failure to maintain adequate airspeed which resulted in an aerodynamic stall. 5
A total loss of engine power during initial climb for undetermined reasons. 5
an inadvertent encounter with convective turbulence. 5
The pilot’s failure to maintain directional control of the airplane during the landing roll. 5
A total loss of engine power for reasons that could not be determined based on the available information. \r 5
The loss of engine power during initial climb for undetermined reasons. 5
The pilot’s improper fuel management, which resulted in a total loss of engine power due to fuel starvation. 5
The pilot's failure to maintain directional control of the airplane during takeoff. 5
The student pilot's improper flare and recovery from a bounced landing. 5
The pilot’s failure to maintain directional control during takeoff.\r\n\r 5
The pilot's failure to maintain control of the airplane during landing. 5
A loss of engine power due to carburetor icing as a result of the pilot's failure to use carburetor heat. 5
An in-flight collision with a bird. 5
The student pilot's failure to maintain directional control during the landing roll. 5
A loss of engine power due to carburetor icing. 5
The pilot's inadequate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 5
The pilot’s failure to maintain directional control during the landing roll. \r 4
The pilot's improper flare which resulted in a hard landing. 4
The pilot's delayed decision to abort the takeoff. 4
A loss of engine power for reasons that could not be determined based on the available information.\r 4
The pilot's failure to maintain directional control of the airplane during the takeoff roll. 4
The pilot's improper landing flare and recovery from a bounced landing. 4
The pilot's improper recovery from a bounced landing, which resulted in a loss of control. 4
The pilot's improper flare. 4
An in-flight loss of control for undetermined reasons. 4
The pilot’s failure to maintain directional control during the landing roll in crosswind conditions.\r\n\r 4
A loss of aircraft control for undetermined reasons. 4
The balloon's encounter with unforecast strong gusting wind, which resulted in a high-wind landing. Contributing to the accident was the National Weather Service's misjudgment of the timing and underestimation of the magnitude of the frontal boundary moving across the region. 4
The pilot's failure to maintain control of the airplane during takeoff. 4
The pilot’s failure to maintain directional control during the landing roll. \r\n\r 4
The pilot's selection of unsuitable terrain for landing, which resulted in a nose over. 4
A total loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel planning. 4
The loss of engine power due to fuel starvation. 4
The pilot's failure to maintain directional control during a crosswind landing. 4
The loss of engine power during cruise flight for undetermined reasons. 4
The pilot's selection of unsuitable terrain for takeoff. 4
The pilot’s failure to maintain directional control during the takeoff roll.\r\n\r 4
The pilot's improper flare during landing. 4
The pilot's loss of directional control during landing, resulting in a collision with terrain. 4
The pilot's inadequate directional control during the landing roll. 4
An in-flight fire for undetermined reasons. 4
A partial loss of engine power for reasons that could not be determined based on the available information. 4
The pilot's failure to maintain aircraft control during landing. 4
The pilot's improper flare and recovery from a bounced landing. 4
The pilot's selection of an unsuitable landing area. 4
A loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel planning. 4
The pilot's failure to maintain directional control while landing in a crosswind. 4
The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation. 4
The pilot's failure to maintain directional control during the landing flare. 4
A partial loss of engine power during takeoff for undetermined reasons. 4
The pilot's improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 3
The pilot’s failure to maintain directional control during the landing roll with a tailwind.\r\n\r 3
The pilot's failure to extend the landing gear. 3
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a nose over. 3
The pilot's loss of control for undetermined reasons. 3
The pilot’s selection of unsuitable terrain for landing, which resulted in a nose-over.\r\n\r 3
The pilot's failure to extend the landing gear, which resulted in a gear-up landing. 3
The pilot’s improper flare and inadequate recovery from a bounced landing. 3
The pilot's improper landing flare, which resulted in a hard landing.\r\n\r\n\r 3
The pilot's failure to maintain aircraft control. 3
The pilot's failure to maintain clearance from power lines. 3
The pilot's failure to maintain directional control during an aborted takeoff. 3
Impact with terrain for reasons that could not be determined based on the available information. 3
Undetermined because the airplane was not located. 3
The pilot’s improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.\r 3
The pilot's failure to maintain aircraft control during the landing. 3
The pilot’s loss of directional control during landing.\r 3
The pilot's failure to maintain adequate airspeed while maneuvering, which resulted in an aerodynamic stall. 3
The pilot’s failure to maintain directional control of the airplane during landing. 3
The student pilot’s failure to maintain directional control during takeoff.\r\n\r 3
The student pilot's improper landing flare, which resulted in a bounced landing. 3
The pilot's selection of an unsuitable landing/takeoff area with an unfavorable wind. 3
The pilot’s improper landing flare, which resulted in a hard landing. 3
The pilot's failure to maintain control during landing. 3
A loss of engine power during initial climb for undetermined reasons. 3
The pilot's failure to ensure that the landing gear was retracted for the water landing. 3
The student pilot's improper landing flare and recovery from a bounced landing. 3
The pilot's improper preflight planning, which resulted in a loss of engine power due to fuel exhaustion. 3
The loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 3
The pilot's excessive use of brakes during the landing roll, which resulted in a nose over. 3
A total loss of engine power for reasons that could not be determined based on the available information.\r\n\r 3
The pilot's failure to extend the landing gear before landing. 3
The pilot’s failure to extend the landing gear before landing.\r\n\r 3
The partial loss of engine power for reasons that could not be determined based on the available evidence.\r 3
The pilot's inadequate landing flare, which resulted in a bounced landing. 3
The pilot’s failure to maintain directional control during the landing roll in gusting wind conditions.\r\n\r 3
The pilot's failure to extend the landing gear before landing.\r 3
The pilot's failure to maintain airplane control during landing. 3
The pilot's inadequate flare and failure to maintain aircraft control during landing. 3
A loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 3
The pilot did not maintain adequate airspeed during takeoff, which resulted in an aerodynamic stall. 3
The total loss of engine power for an undetermined reason. 3
The pilot's improper decision to land on an unsuitable landing surface which resulted in a nose over. 3
The pilot's failure to extend the landing gear prior to landing, which resulted in substantial damage to the fuselage during landing. 3
The pilot’s failure to extend the landing gear before landing. 3
An inadvertent collision with a deer during landing. 3
The pilot's decision to fly at a low altitude in mountainous terrain and weather conditions conducive to downdrafts. 3
The pilot's failure to lower the landing gear prior to touchdown. 3
A partial loss of engine power during initial climb for undetermined reasons. 3
The pilot's failure to maintain clearance from an obstacle during taxi. 3
A loss of engine power due to fuel exhaustion. 3
The pilot's failure to maintain directional control while landing, resulting in a ground loop and substantial damage to the airplane. 3
The student pilot's improper landing flare. 3
A loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. 3
A failure of the nose landing gear end cap due to fatigue. Contributing to the failure were the ineffective inspection and the unknown effect of grain direction on fatigue life. 3
The pilot's failure to maintain aircraft control for undetermined reasons. 3
The pilot's failure to maintain clearance from obstacles. 3
A loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel management. 3
The pilot's failure to maintain directional control during the landing roll in crosswind conditions, which resulted in a ground loop. 3
The pilot's failure to maintain aircraft control during the landing roll. 3
The student pilot's improper flare and improper recovery from a bounced landing. 3
The pilot’s failure to maintain directional control while landing in crosswind conditions.\r\n\r 3
The loss of engine power due to carburetor icing.\r 3
The student pilot’s improper landing flare, which resulted in a hard landing. 3
The pilot’s improper landing flare and subsequent failure to maintain directional control during landing.\r\n\r 3
The pilot’s failure to extend the landing gear before landing. \r 3
The pilot’s failure to maintain directional control during landing in gusting crosswind conditions.\r\n\r 3
A total loss of engine power for an undetermined reason. 3
A partial loss of engine power for reasons that could not be determined based on the available information. \r 3
The pilot's failure to maintain directional control during landing, which resulted in a ground loop. 3
The student pilot’s failure to maintain directional control during landing. 3
A total loss of engine power for reasons that could not be determined based on the available evidence.\r 3
The loss of engine power due to fuel starvation.\r 3
The student pilot's improper landing flare and inadequate recovery from a bounced landing. 3
A total loss of engine power due to carburetor icing. 3
A loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 3
A total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 3
The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel exhaustion. 3
The pilot’s failure to maintain directional control while landing in gusting wind conditions.\r\n\r 3
The pilot's failure to lower the landing gear prior to landing. 3
The pilot's failure to maintain directional control during landing with a crosswind. 3
A loss of engine power due to fuel starvation as a result of the pilot's inadequate fuel management. 3
The pilot’s inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 2
A loss of engine power for reasons that could not be determined based on the available evidence.\r 2
The pilot's inadequate pre-flight planning and in-flight monitoring of the fuel level which resulted in a total loss of engine power due to fuel exhaustion. 2
The pilot did not maintain adequate airspeed during a go-around, which resulted in an aerodynamic stall. 2
The pilot’s failure to maintain directional control during landing. \r 2
The pilot’s overapplication of the brakes during landing, which resulted in a nose-over.\r 2
The pilot's failure to maintain directional control while landing in a gusty crosswind. 2
The pilot's failure to maintain directional control of the airplane during landing roll. 2
The pilot did not maintain control of the airplane while maneuvering at low altitude. 2
The pilot's failure to extend the landing gear for landing. 2
A total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 2
The in-flight collision with a bird. 2
A loss of control for reasons that could not be determined based on the available information.\r\n\r 2
an inadvertent encounter with clear air turbulence.\r 2
The pilot's improper use of brakes during the landing rollout. 2
A total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 2
The NTSB did not determine the probable cause of this event and does not plan to issue a report or open a public docket. The investigation of this event is being conducted under the jurisdiction of the Federal Bureau of Investigation. 2
The failure of both pilots to see and avoid each other's aircraft. 2
The pilot’s improper fuel management, which resulted in a total loss of engine power due to fuel starvation.\r\n\r 2
The pilot’s failure to maintain directional control during landing in gusty crosswind conditions. 2
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop. 2
The pilot's improper landing flare, which resulted in a hard landing.\r 2
A total loss of engine power during cruise flight due to fuel exhaustion as a result of the pilot’s improper fuel planning. 2
The pilot's inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation. 2
The pilot's inadequate in-flight fuel management, which resulted in a total loss of engine power due to fuel starvation. 2
A total loss of engine power during the initial climb after takeoff for undetermined reasons. 2
The pilot’s improper fuel management, which resulted in a total loss of engine power due to fuel exhaustion. 2
The pilot’s selection of unsuitable terrain for landing which resulted in a nose-over.\r 2
A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no anomalies. 2
A partial loss of engine power due to carburetor icing.\r 2
The pilot's misjudged landing flare and inadequate recovery from a bounced landing. 2
The pilot's mismanagement of the available fuel, which resulted in a total loss of engine power due to fuel starvation.\r 2
The student pilot's improper flare. 2
A loss of engine power due to the pilot's improper inflight planning and reliance of fuel gauge readings, which resulted in fuel exhaustion. 2
The loss of engine power for reasons that could not be determined based on the available information. 2
A total loss of engine power due to fuel starvation.\r 2
The pilot’s improper landing flare, which resulted in a bounced landing. \r 2
The pilot’s failure to maintain directional control during landing with a crosswind. \r 2
The pilot's failure to maintain clearance from power lines during an agricultural application flight. \r 2
The pilot's loss of airplane control for reasons that could not be determined based on the available information.\r 2
The pilot's failure to maintain adequate airspeed while maneuvering at low altitude, which resulted in an aerodynamic stall. 2
The loss of engine power for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 2
The pilot's failure to maintain clearance from wires during the agricultural flight. 2
The loss of engine power for reasons that could not be determined based on the available information.\r 2
The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's lack of experience in the make and model airplane. 2
The pilot's failure to maintain clearance from power lines while maneuvering at low altitude. 2
The pilot's failure to extend the landing gear during the approach, which resulted in a gear-up landing. 2
The pilot's failure to select the proper fuel tank before departure, which resulted in fuel starvation and a total loss of engine power.\r\n\r 2
The pilot's inadequate compensation for the gusting wind conditions. 2
The pilot's failure to adequately secure the airplane while hand-starting the engine. 2
A hard landing for reasons that could not be determined based on the available evidence. 2
The pilot’s inadvertent brake application during the landing roll, which resulted in a loss of directional control.\r\n\r 2
An inadvertent encounter with clear air turbulence. 2
A loss of engine power during takeoff for undetermined reasons. 2
The pilot's failure to maintain directional control during the landing, which resulted in a runway excursion and collision with terrain. 2
The pilot’s failure to maintain directional control during landing. \r 2
The biplane pilot’s inadequate visual lookout, which resulted in an on-ground collision with another airplane while taxiing. \r 2
A total loss of engine power for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation. 2
A total loss of engine power due to fuel exhaustion as a result of the pilot's inadequate preflight fuel planning. 2
The pilot’s delayed use of carburetor heat while operating in conditions conducive to carburetor icing. 2
An inadvertent encounter with convective turbulence.\r 2
The student pilot's failure to maintain pitch control during the landing touchdown, resulting in a hard landing. 2
The student pilot's failure to maintain aircraft control during an aborted landing. 2
The pilot’s failure to maintain airplane control while landing in gusting wind conditions. 2
The loss of engine power for reasons that could not be determined based on the available evidence.\r 2
The pilot's continued visual flight into instrument meteorological conditions, which resulted in an in-flight collision with terrain. 2
The pilot's failure to maintain directional control during the landing roll. \r\n\r\n\r 2
The pilot's failure to maintain clearance from a power line. 2
A total loss of engine power in flight due to fuel exhaustion as a result of the pilot's inadequate fuel planning. 2
The student pilot's loss of directional control during landing. 2
A total loss of engine power due to fuel exhaustion as a result of the pilot’s inadequate preflight planning. 2
A total loss of engine power for reasons that could not be determined based on the available evidence. \r 2
The pilot's failure to maintain directional control during the aborted takeoff. 2
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and impact with terrain. 2
The pilot's incorrect brake application during the landing roll, which resulted in a nose over. 2
The pilot's decision to make contact with an unsuitable landing surface, resulting in a nose over. 2
A loss of engine power due to fuel starvation for undetermined reasons. 2
An in-flight collision with a bird.\r\n\r 2
A partial loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 2
The pilot's failure to attain the proper touchdown point. 2
The pilot's failure to maintain clearance from power lines during low-altitude maneuvering.\r 2
The pilot’s inadequate recovery from a bounced landing, which resulted in a loss of control. 2
The pilot's failure to extend the landing gear prior to touchdown. 2
The pilot of the Cessna 150’s failure to avoid the taxiing Cessna 172.\r 2
An inadvertent collision with a deer during a night takeoff. 2
The pilot's loss of directional control while landing, which resulted in a runway excursion.\r 2
The pilot's loss of control due to spatial disorientation. 2
The pilot's failure to maintain directional control during the landing roll. \r 2
The student pilot's failure to maintain directional control during the takeoff roll. 2
The pilot's failure to maintain directional control of the airplane during the landing. 2
The pilot's failure to maintain directional control of the airplane. 2
The pilot's improper landing flare, which resulted in a hard, bounced landing. 2
The pilot's failure to maintain clearance from power lines while maneuvering. 2
The pilot’s failure to maintain directional control during the landing roll, which resulted in a runway excursion. \r\n\r 2
The total loss of engine power due to carburetor icing. 2
A loss of engine power, as reported by the pilot, for undetermined reasons. 2
The pilot's delayed use of carburetor heat while operating in conditions conducive to carburetor icing. 2
The pilot's encounter with high wind which resulted in a hard landing and passenger injury. 2
The pilot's improper use of brakes during landing. 2
The pilot's improper application of brakes during the landing rollout. 2
The pilot's encounter with a windshear/downdraft that exceeded the climb performance capabilities of the airplane. 2
The pilot's inadequate compensation for the crosswind during landing. 2
The pilot's inadequate compensation for the gusty crosswind conditions while landing. 2
The loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to maintain aircraft control during the forced landing. 2
The pilot's failure to maintain directional control while landing in gusting crosswind conditions. 2
The pilot’s failure to maintain control of the helicopter. 2
The reason for this occurrence was undetermined. 2
The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's improper application of brakes. 2
A total loss of engine power due to fuel exhaustion. 2
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop. \r\n\r\n\r 2
The pilot's failure to maintain control of the airplane during the landing. 2
The pilot's failure to maintain directional control of the airplane during the crosswind landing. 2
The pilot's failure to maintain directional control during a go-around. 2
The pilot's inadequate preflight planning, which resulted in a loss of engine power due to fuel exhaustion. 2
A total loss of engine power due to fuel starvation as a result of a clogged fuel filter. 2
The pilot's selection of unsuitable terrain for landing, resulting in a nose over. 2
The pilot's failure to maintain sufficient airspeed to avoid a stall during the landing approach. 2
The pilot's inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation.\r 2
A loss of engine power for an undetermined reason. 2
The student pilot's failure to maintain control of the airplane during a go-around. 2
The pilot's inadequate compensation for the wind condition, resulting in a runway excursion. 2
The pilot's failure to maintain directional control during the landing roll.\r\n\r\n\r 2
The pilot's failure to maintain clearance from power lines during an aerial application flight. 2
A total loss of engine power due to fuel starvation as a result of the pilot's improper fuel management. 2
The pilot's loss of control during landing for undetermined reasons. 2
The pilot's excessive use of brakes during the landing roll resulting in a nose over. 2
The pilot's failure to maintain directional control during an attempted go-around, which resulted in a runway excursion and a collision with terrain. 2
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground loop.\r\n\r 2
The pilot's failure to maintain clearance from terrain. 2
A partial loss of engine power due to carburetor icing. 2
A loss of control in flight for undetermined reasons. 2
The pilot's failure to maintain clearance from the power lines. 2
Undetermined (airplane and pilot missing). 2
The pilot's failure to maintain directional control during landing. Contributing to the accident was the crosswind. 2
The pilot's inadequate preflight planning and fuel management, which resulted in a total loss of engine power due to fuel exhaustion. 2
The pilot’s failure to lower the landing gear prior to landing. 2
The pilot's failure to maintain clearance from the power transmission lines during an aerial application run. 2
The pilot's loss of directional control during the takeoff roll. 2
The pilot's excessive brake application during the landing roll resulting in a nose over. 2
A total loss of engine power due to fuel exhaustion as a result of the pilot’s inadequate fuel planning. 2
The pilot's failure to maintain directional control during landing in gusting wind conditions. 2
The pilot's failure to maintain clearance from terrain during takeoff. 2
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during the landing flare, which resulted in an aerodynamic stall.\r\n\r 2
The pilot’s failure to maintain directional control during the landing rollout. 2
The pilot's failure to maintain clearance from the wire. 2
The glider's encounter with insufficient atmospheric lift to maintain soaring flight. 2
The pilot's delayed decision to abort the takeoff, which resulted in a runway excursion. 2
The pilot’s improper recovery from a bounced landing.\r 2
The pilot's failure to maintain clearance from wires during an agricultural application flight. \r\n\r\n\r 2
The pilot’s failure to maintain directional control during takeoff. \r 2
The pilot's failure to maintain clearance from terrain while maneuvering at low altitude. 2
The pilot's inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel starvation. 2
The loss of engine power for an undetermined reason. 2
A total loss of engine power due to fuel exhaustion as a result of the pilot’s inadequate preflight fuel planning. 2
The pilot’s inadequate flare, which resulted in a hard landing. 2
The pilot's failure to maintain control of the airplane while taxiing in gusty wind conditions. 2
The pilot's failure to maintain directional control during takeoff.\r 2
The pilot's inadequate compensation for wind conditions. 2
The pilot's failure to see and avoid wires while maneuvering at a low-altitude, which resulted in the main rotor blades striking the wires. 2
The pilot's inadequate compensation for the crosswind, which resulted in a loss of directional control. 2
The pilot's failure to maintain directional control during landing roll out. 2
The pilot's failure to maintain clearance from trees while maneuvering at a low altitude. 2
The student pilot’s failure to maintain directional control during the landing roll.\r\n\r 2
The pilot's failure to maintain directional control during the landing roll.\r 2
The partial loss of engine power due to carburetor icing. 2
The pilot’s failure to maintain directional control during landing with a tailwind.\r\n\r 2
The pilot's loss of directional control during the landing roll. 2
The pilot's failure to maintain directional control while landing with a quartering tailwind. 2
The student pilot’s improper landing flare, which resulted in a hard landing and porpoise.\r\n\r 2
The pilot’s improper flare and recovery from a bounced landing. 2
A loss of directional control on takeoff for undetermined reasons. 2
The pilot’s improper preflight fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power.\r 2
The pilot's failure to maintain directional control during landing, which resulted in a ground loop. \r 2
The student pilot's improper landing flare and the flight instructor's delayed remedial action. 2
The student pilot's improper flare which resulted in a hard landing. 2
The student pilot's failure to maintain directional control during the takeoff roll.\r\n\r\n\r 2
The pilot’s suicidal act. 2
The pilot did not maintain control of the airplane while landing with a crosswind. 2
The student pilot’s failure to maintain directional control during landing.\r\n\r 2
The partial loss of engine power for reasons that could not be determined because examination of the engine did not reveal any anomalies that would have precluded normal operation. 2
The pilot's failure to maintain control of the helicopter. 2
An in-flight loss of control and collision with terrain for reasons that could not be determined based on the available information. 2
The student pilot's failure to maintain directional control during a touch-and-go landing. 2
The pilot’s failure to maintain directional control during the takeoff, which resulted in a runway excursion. 2
The student pilot's improper flare, which resulted in a hard landing, and the flight instructor's inadequate supervision of the student. 2
The pilot’s failure to maintain directional control during taxi. 2
The pilot’s failure to maintain directional control during the takeoff roll.\r 2
The pilot’s failure to maintain directional control during a crosswind landing.\r 2
The pilot’s failure to see and avoid transmission wires.\r\n\r 2
The student pilot’s improper flare, which resulted in a hard landing. 2
The pilot’s failure to maintain directional control during the takeoff roll. 2
The pilot’s failure to maintain control of the airplane during the takeoff roll. 2
The pilot’s failure to maintain directional control during takeoff with a tailwind.\r 2
The pilot's loss of control during takeoff. 2
The pilot's failure to maintain directional control of the airplane during an aborted landing, which resulted in a ground loop, runway excursion, and subsequent nose over.\r 2
The pilot's failure to maintain directional control while landing in gusty crosswind conditions. 2
A partial loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 2
The pilot's inadequate compensation for gusty crosswinds during takeoff, which resulted in a loss of directional control. 2
The pilot did not maintain directional control during landing. 2
A loss of engine power during cruise flight for undetermined reasons. 2
an inadvertent encounter with turbulence. 2
The pilot's selection of an unsuitable takeoff area with an unfavorable wind. 2
The student pilot’s failure to maintain sufficient distance behind a jet airplane which, resulted in his loss of airplane control due to the jet airplane’s jet blast and the flight instructor’s delayed remedial action. \r 2
The pilot's failure to maintain control of the airplane during the landing approach. 2
The pilot's failure to properly secure the airplane before hand-propping the engine for startup. 2
The pilot's failure to maintain clearance from trees. 2
The pilot’s failure to execute a go-around following an approach that was high and fast, which resulted in a runway overrun. 2
A partial loss of engine power for an undetermined reason. 2
The Cessna pilot's inadequate visual lookout. 2
The failure of the vertical stabilizer control adapter due to reverse bending fatigue. 2
The pilot's failure to maintain aircraft control while landing. 2
The pilot’s failure to maintain directional control during the landing roll in gusting wind conditions.\r 2
The pilot's failure to obtain the proper touchdown point during landing. 2
The student pilot’s failure to maintain directional control during takeoff.\r 2
The pilot's decision to land on an unsuitable surface, which resulted in a nose over. 2
The pilot’s failure to maintain directional control during a crosswind landing/rollout. 2
The pilot's spatial disorientation and subsequent failure to maintain airplane control. 2
The pilot’s loss of directional control during landing.\r\n\r 2
The pilot's inadequate recovery from a bounced landing, which resulted in a loss of airplane control. 2
The pilot's inadequate compensation for the crosswind conditions. 2
The pilot’s failure to maintain directional control during the landing roll.\r\n
\r 2
The pilot's inadequate compensation for the crosswind condition and failure to maintain directional control. 2
The total loss of engine power due to fuel exhaustion.\r 2
The pilot's failure to use continuous carburetor heat while operating in conditions conducive to carburetor icing, which resulted in the development of carburetor ice and a subsequent partial loss of engine power. 2
The pilot’s failure to maintain directional control while landing in a gusting crosswind. 2
Foreign 2
A fire of undetermined origin. 2
The pilot’s inadequate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 2
A loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 2
The total loss of engine power for reasons that could not be determined based on the available information. 2
The pilot's failure to maintain directional control of the airplane while landing with gusting winds. 2
The pilot's intentional flight into terrain. 2
The pilot's excessive braking during the landing roll. 2
A partial loss of engine power for undetermined reasons.\r 2
A loss of engine power due to fuel starvation as a result of the pilot's improper fuel management. 2
The pilot's loss of directional control during the landing roll, which resulted in a runway excursion. 2
A loss of lift that resulted in an off-airport landing. 2
The partial loss of engine power due to carburetor icing.\r 2
The pilot's improper decision to land on unsuitable terrain, which resulted in a nose-over.\r 2
A loss of engine power due to fuel exhaustion as a result of the pilot's fuel mismanagement. 2
The pilot's failure to maintain control of the airplane during an instrument approach due to spatial disorientation. 2
an encounter with convectively induced turbulence while overflying an area of known convective activity.\r 2
A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. 2
The pilot’s improper flare, which resulted in a hard landing.\r 2
The airplane’s impact with a bird while on approach.\r 2
A loss of engine power due to fuel contamination. 2
The pilot's loss of directional control during takeoff. 2
The pilot’s failure to maintain directional control during a crosswind landing. 2
The loss of engine power for undetermined reasons.\r 2
The pilot's failure to maintain control of the airplane while taking off with a gusting crosswind. 2
The pilot’s failure to maintain directional control during taxi, which resulted in a runway excursion. 2
The pilot's loss of control for undetermined reasons.\r 2
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop.\r 2
The total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation.\r 2
An in-flight loss of control for reasons that could not be determined based on the available evidence. 2
The pilot’s failure to maintain directional control during the landing roll in gusting crosswind conditions.\r\n\r 2
The failure of the pilot of N694V (RV-8) to maintain clearance from the preceding airplane, N79KM (RV-4), while taxiing for takeoff, which resulted in an on-ground collision.\r 2
Flight into terrain for undetermined reasons. 2
The student pilot’s failure to maintain directional control during takeoff. 2
The student pilot's improper flare during landing. 2
The pilot's improper landing flare, resulting in a hard landing. 2
A total loss of engine power during cruise flight for undetermined reasons. 2
A total loss of engine power for undetermined reasons. \r 2
The noninstrument-rated pilot's continued visual flight into instrument meteorological conditions, which resulted in controlled flight into mountainous terrain. 2
The pilot's selection of unsuitable terrain for landing, which resulted in a nose-over. \r\n\r\n\r 2
The pilot's improper engine starting procedures. 2
A total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 2
an in-flight collision with a bird. 2
The student pilot’s failure to maintain directional control during the landing roll. 2
The multi-engine pilot's failure to maintain clearance from another airplane during taxi. 2
The pilot's inadequate compensation for gusting, variable wind conditions during initial climb after takeoff. 2
The student pilot’s improper landing flare, which resulted in a bounced landing.\r\n\r 2
The pilot's failure to maintain adequate airspeed, resulting in an aerodynamic stall. 2
The pilot's failure to maintain directional control during landing roll in gusty wind conditions. 2
The pilot's loss of airplane control during takeoff. 2
The pilot's failure to see and avoid power lines during final approach to landing. 2
The pilot's failure to maintain directional control while landing in gusting wind conditions. 2
The pilot's failure to extend the landing gear prior to landing. 2
A partial loss of engine power during the initial climb for undetermined reasons. 2
The pilot’s overapplication of the brakes during the landing roll, which resulted in a nose-over.\r 2
The pilot's improper fuel planning, which resulted in a loss of engine power due to fuel exhaustion. 2
The student pilot's failure to maintain clearance from obstacles while taxiing. 2
The pilot’s loss of directional control during the landing roll. 2
The pilot's failure to maintain directional control during landing. \r 2
The pilot's improper flare and inadequate recovery from a bounced landing. 2
The pilot’s inadequate braking after touchdown, which resulted in a runway excursion. 2
The pilot's failure to obtain the proper touchdown point while landing. 2
The pilot's failure to properly secure the airplane before attempting to hand-prop the engine. 2
The pilot's failure to maintain directional control of the airplane during landing which resulted in a runway excursion. 2
The pilot's loss of airplane control during the landing roll. 2
The pilot's failure to maintain control of the helicopter during takeoff. 2
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground loop. 2
The pilot did not maintain control of the airplane while landing. 2
The pilot's loss of directional control during landing, which resulted in a runway excursion. 2
The failure of the pilot of the second aircraft to maintain a safe distance from the lead airplane while taxiing, which resulted in a ground collision.\r\n \r 2
The pilot’s failure to maintain directional control during takeoff in gusting crosswind conditions.\r\n\r 2
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and nose over. 2
The pilot's mismanagement of the available fuel, which resulted in a total loss of engine power due to fuel starvation. 1
A partial loss of engine power due to carburetor ice accumulation. \r\n\r\n\r 1
The pilot's selection of unsuitable terrain for an off-airport landing, which resulted in a collision with trees and a ground-loop. 1
A loss of main rotor rpm and airframe vibration for reasons that could not be determined based on the available information, which resulted in a forced landing to sloping terrain and the helicopter rolling over.\r 1
The pilot's decision to conduct an upslope, downwind takeoff combined with an improper flap setting, which resulted in the airplane's inability to clear trees beyond the runway end. The reason for the improper flap setting could not be determined. 1
The pilot exceeded the critical angle of attack during the initial climb in tailwind conditions, which resulted in an aerodynamic stall. 1
The pilot's failure to maintain airplane control when it encountered a wind gust during climbout.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and substantial damage to the fuselage. 1
The pilot’s inadequate preflight inspection of the fuel system, which resulted in a total loss of engine power due to water contamination.\r 1
The pilot's failure to maintain directional control during gusty wind conditions. Contributing to the outcome was the pilot's exceedance of the maximum crosswind component during takeoff. 1
The pilot's failure to maintain directional control during the landing in variable direction and gusting wind conditions, resulting in a landing off the side of the runway and impact with a drainage culvert. 1
an inadvertent encounter with clear air turbulence that resulted in a serious injury to a flight attendant. 1
The pilot’s failure to see and avoid cellular tower guy wires. Contributing to the accident was the pilot’s decision to operate at low altitude. 1
A reduction in available engine power during takeoff due to a stuck hot air valve, which resulted in low rotor rpm and a forced landing. Contributing to the accident was the lack of dry film lubricant and the presence of corrosion on the hot air valve assembly, which resulted in the sticking of the valve. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in runway excursion, and a ground loop. 1
The pilot's failure to obtain the proper touchdown point and failure to perform a go-around once a safe landing on the runway could not be accomplished. 1
The pilot's failure to maintain directional control during landing, which resulted in a collision with terrain. Contributing to the accident was the loose dirt and gravel deposited in the center of the runway. 1
The pilot’s disregard of the banner-tow operator's policy regarding the maximum allowable flight duration, which resulted in a total loss of engine power due to fuel exhaustion. 1
a structural failure of the wing as a result of exceeding the airspeed envelope due to wind gusts which were beyond the capabilities of the autopilot. Contributing to the accident was an insufficient amount of drag to track the glideslope in the presence of atmospheric disturbances. 1
The student pilot's failure to maintain pitch control during the touch down resulting in a bounced landing, subsequent hard landing and substantial damage to the firewall. 1
A total loss of engine power due to debris contamination of the fuel system. Contributing to the accident was the pilot's inadequate preflight inspection.\r 1
A missing bolt in the nose landing gear assembly, which resulted in the airplane suddenly turning left and the pilot's inability to maintain directional control during a crosswind takeoff. 1
The pilot's unintentional activation of the green jump light before the airplane was properly configured and slowed for a jump and the jumpers' improper decision to continue with the jump after they recognized that the airplane was at a higher-than-normal airspeed. Contributing to the accident were the pilot’s failure to recognize that the amber light remained on after the first jump and the senior jumper's decision not to inform the pilot that the amber light remained on following the first jump. 1
A total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine revealed no mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot’s loss of directional control during takeoff.\r 1
The pilot's loss of directional control during landing in gusting wind conditions resulting in excessive brake application, and airplane nose over. 1
The pilot's inadequate preflight inspection, which resulted in an inflight fire due to the presence of a bird nest in the engine compartment. 1
Aa total loss of engine power due to fuel starvation, which resulted from the low level of fuel unporting during a rapid spiraling descent.\r 1
The pilot’s failure to control the balloon’s descent rate during the landing approach, which resulted in a hard landing.\r 1
The student pilot's failure to maintain directional control during the takeoff, which resulted in runway excursion and collision with a ditch. Contributing to the accident was the improper flap retraction procedure employed by the pilot during takeoff. 1
The student pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion, impact with a sign, and left wing damage. 1
The collision with a deer during touchdown of a night landing, which resulted in substantial damage to the horizontal stabilizer and elevator of the airplane. 1
The pilot's decision to perform a sliding takeoff from the elevated platform, which resulted in a dynamic rollover when the right skid plate caught on a protruding screw. Contributing to the accident was the pilot's failure to adequately inspect the landing platform before flight. 1
The pilot's failure to maintain directional control during the takeoff roll, and his excessive pitch attitude at low airspeed during initial climb, resulting in an aerodynamic stall and consequent ground impact. 1
A directional upset on landing due to a thermally induced atmospheric disturbance, which the pilot was unable to successfully counter due to improperly set rudder travel limits. 1
The pilot's exceedance of the critical angle of attack during an initial climb of an aborted landing, which resulted in an inadvertent aerodynamic stall and impact with terrain. 1
the improper placement of the coffee pot on the beverage cart and failure to use a safe-pour lid. 1
A partial loss of engine power during the initial climb for undetermined reasons.\r 1
A collapse of the right main landing gear for reasons that could not be determined because of the damage to the landing gear system. 1
The pilot's failure to monitor the parked vehicle, which resulted in a ground collision and substantial damage to the left wing. 1
The pilot's failure to maintain directional control of the airplane during the landing roll. Contributing to the accident was the check pilot's failure to act in a timely manner to prevent the airplane from departing the runway. 1
The pilot's failure to maintain directional control upon landing, which resulted in a runway excursion followed by impact with terrain. 1
\r\nThe pilot's improper pitch control after the landing flare, resulting in an aerodynamic stall, hard landing, and consequent substantial left wing damage. 1
A total loss of engine power due to a fatigue fracture of the fuel pressure line that connected the fuel control unit and the fuel flow transducer due to vibration as the result of a fatigue fracture of an associated support clamp. Contributing to the accident was the mechanic’s inadequate inspection of the fuel line support clamp during the previous replacement of the fuel line. \r 1
The partial loss of engine power during takeoff initial climb in high-density altitude conditions for reasons that could not be determined because a postaccident examination of the airplane and engine revealed no anomalies. 1
The pilot's failure to attain the proper touchdown point and the airplane's subsequent impact with a fence during an attempted aborted landing. 1
The pilot's failure to retract the amphibious airplane's land-wheels prior to landing on a lake, which resulted in a nose over. 1
A loss of engine power due to water contamination of the fuel.\r 1
A loss of directional control while landing, which resulted in a runway excursion and landing gear collapse for reasons that could not be determined. \r 1
The exhaust band clamp failure, which resulted in an engine fire due to hot exhaust gases entering the engine compartment. \r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion, right main landing gear collapse, and impact with the ground. 1
The airplane striking a deer during the landing roll, resulting in a loss of directional control, runway excursion, and subsequent nose over. 1
The pilot's failure to maintain proper positioning during performance of an aerobatic maneuver and his subsequent failure to discontinue maneuvering when unable to reestablish proper positioning during a steep descent toward the ground. 1
The pilot's failure to maintain the airplane's descent rate resulting in a hard landing, and subsequent substantial damage to the firewall. 1
The pilot's failure to attain an adequate rate of climb, which resulted in off airport landing and substantial damage to the fuselage and right wing. 1
The pilot's failure to maintain airplane control while landing in gusty wind conditions, resulting in a noseover. 1
The tug driver's failure to comply with the wing walkers direction to stop, which resulted in the towed airplane colliding with N961SW. 1
The pilot's failure to obtain proper takeoff speed before breaking ground, which resulted in the airplane’s failure to gain altitude and a collision with trees and terrain.\r 1
Maintenance personnel’s failure to properly secure the left vertical fin cowling during recent maintenance, which resulted in its separation and subsequent contact with the tail rotor system during flight. 1
The student pilot's failure to maintain directional control during the landing flare, which resulted in a runway excursion, and impact with a sign. 1
The pilot’s inadequate flight planning and navigation for a flight at night, which resulted in his having to conduct a precautionary landing on an interstate highway due to low fuel and impacting the post of a wire road divider. \r 1
The pilot candidate's incorrect action performance by pulling the throttle off early and the subsequent failure to maintain the descent rate, resulting in a hard landing. 1
The student pilot's high descent rate during the landing flare, which resulted in a hard landing, nose landing gear collapse, and runway excursion during an aborted landing. 1
The pilot's failure to see and avoid power lines on approach during landing, resulting a power line strike, uncontrolled descent, and collision with terrain. Contributing to the accident was the pilot's inadequate pre-flight planning. 1
A total loss of engine power due to an encounter with a bird, which collided with the spray pump fan assembly and subsequently sent blade fragments into the engine compartment, damaging the throttle linkage. 1
The pilot's failure to maintain an appropriate descent rate during the landing flare in gusty crosswind conditions, which resulted in a hard landing, aerodynamic stall, impact with terrain, nose gear collapse, and nose over. 1
The collapse of the powered parachute's canopy for a reason that could not be determined, because postaccident examination revealed no anomalies with the parachute. 1
The pilot's failure to attain airspeed and a positive rate of climb during takeoff in gusty wind conditions, resulting in a loss of directional control, an uncontrolled descent and collision with terrain. 1
The failure of the pin in the outboard end of the lateral flight control torque tube. \r 1
The failure of maintenance personnel to properly install and secure the input swivel boot on the swivel joint, which resulted in excessive vibration that led to fatigue cracks and failure of the throttle cable. 1
The pilot's failure to monitor and maintain clearance with terrain while maneuvering at low level.\r\n\r\nContributing to the accident, was the pilot's failure to conduct an adequate amount of clearing turns while maneuvering at low level. 1
The pilot's loss of directional control during takeoff in gusting crosswind conditions. 1
A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the engine revealed no anomalies that would have precluded normal operation.\r\n\r 1
The student pilot's decision to takeoff in wind conditions that exceeded his certificated flight instructor's maximum wind endorsement, and the student pilot's failure to maintain pitch control during the touchdown, resulting in abnormal runway contact, and substantial damage to the firewall. 1
The disengagement of the tailwheel locking mechanism during the landing roll due to wear, and a subsequent loss of directional control. Contributing was the pilot's inadequate remedial action, which resulted in a runway excursion. 1
The pilot's decision to land on unsuitable wet terrain, and his failure to stop prior to the end of the runway, which resulted in a runway overrun and impact with tree(s). 1
The pilot's visual disorientation and failure to monitor the altimeter during a night approach, which resulted in controlled flight into terrain. 1
The pilot's delayed reaction to the variable wind condition, which resulted in an excessive descent rate and the airplane's subsequent collision with a wire fence short of the runway. 1
Failure of the gear strut mount nut due to wear. 1
The pilot's unintentional brake application during the landing roll, which resulted in a nose over. 1
The pilot's failure to attain an adequate airspeed and his intentional aerodynamic stall, which resulted in an impact with terrain and a post-impact fire. 1
The pilot's decision to fly into deteriorating weather conditions, leading to a precautionary off airport soft field landing which resulted in a nose gear collapse and the airplane to nose over. 1
The pilot's failure to establish a climb and maintain directional control during takeoff in quartering tailwind conditions, which resulted in a loss of directional control, aborted takeoff, collision with a wire fence, and nose over. 1
The pilot's failure to maintain clearance from trees during an attempted go-around. 1
A partial loss of engine power due to carburetor icing, which resulted from the pilot’s failure to apply carburetor heat.\r\n\r 1
A loose output connection from the generator voltage regulator, which resulted in a loss of power to the electronic ignition system, a total loss of engine power, and a subsequent forced landing, during which the airplane impacted a sign pole. 1
The glider's loss of lift as a result of unfavorable wind conditions for glider operations, consequently resulting in a collision with trees. 1
The pilot's failure to maintain control of the airplane during a forced landing following a partial loss of engine power, which resulted in a hard landing and nose over. The reason for the loss of engine power could not be determined due to the severity of the postimpact fire damage.\r\n\r 1
An in-flight collision with trees and terrain for reasons that could not be determined because no anomalies consistent with a preimpact failure or malfunction were observed during the examination. 1
The pilot’s failure to establish proper airspeed and angle-of-attack during takeoff with the airplane at its maximum gross weight in elevated density altitude and gusting tailwind conditions, which resulted in an aerodynamic stall. 1
The pilot's failure to maintain pitch control during the landing roll, which resulted in a nose over. 1
A loss of airplane control during landing for reasons that could not be determined, because the airplane sank and was not recovered. 1
The pilot's failure to maintain directional control while landing. Contributing to the accident was the pilot's decision to accept an advised runway rather than determine actual airport winds, which resulted in the airplane landing with a quartering tailwind. 1
The pilot's improper landing flare, which resulted in a hard landing and subsequent damage to the left float. 1
The motorglider pilot's decision to perform an in-flight engine start with insufficient altitude, which resulted in an off-airport landing and collision with trees after the engine did not start. Contributing to the accident was the pilot's distraction by the engine restart procedures during a critical portion of the landing approach. 1
The pilot's delayed decision to conduct a go-around following an unstabilized landing approach and his subsequent failure to maintain clearance from trees near the end of the runway. 1
The pilot's loss of airplane control for reasons that could not be determined based on the available evidence. 1
The flight instructor's failure to maintain airplane control while demonstrating a simulated engine failure. Contributing to the accident was the pilot's improper response to the simulated engine failure. 1
The pilot's failure to maintain directional control during takeoff in varying wind conditions, which resulted in a hard landing. 1
The pilot's loss of control for undetermined reasons based on available information. 1
The overstress failure of the nose landing gear fork assembly.\r 1
The engine's degraded performance due to excessive wear of the engine bleed valve, which prevented it from closing during the accident flight. Contributing to the accident was the operator's failure to overhaul the bleed valve within the manufacturer-recommended interval. 1
A loss of engine power due to water in the fuel system. Contributing to the accident was an inadequate preflight inspection that failed to eliminate water from the fuel system. \r 1
The failure of the power turbine governor's dual-spool bearing due to a lack of lubrication, which resulted in a complete loss of engine power and subsequent impact with terrain. 1
The pilot’s loss of airplane control during landing due to a wind gust.\r 1
The pilot's failure to promptly feather the left propeller upon the initial loss of engine power shortly after takeoff and his failure to maintain airspeed while maneuvering with one engine inoperative, which resulted in a loss of control at a low altitude. Also causal was the partial loss of left engine power during initial climb for reasons that could not be determined because examination of the airplane did not reveal any evidence of mechanical malfunction that would have precluded normal operation. 1
The student pilot's failure to maintain the appropriate pitch attitude during initial climb, which resulted in an aerodynamic stall. Contributing to the accident was the student pilot’s decision to conduct a solo flight without a solo endorsement in an aircraft in which he had no experience flying. 1
The pilot's failure to properly manage the available fuel supply, which resulted in a total loss of engine power due to fuel starvation. 1
The pilot's failure to maintain an appropriate descent rate during the landing flare in gusty crosswind conditions, which resulted in a hard landing, left main landing gear collapse, and runway excursion. 1
The pilot's failure to maintain adequate airspeed while maneuvering at a low altitude, which resulted in an aerodynamic stall from which he could not recover. 1
The airplane’s inability to climb and subsequent impact with terrain for reasons that could not be determined based on the available information. 1
The flight instructor's failure to maintain aircraft control during landing as a result of his failure to adjust the electric trim to the proper position for landing. 1
The mechanic’s failure to inspect the fine fuel filter gascolator as required during the most recent inspection, which resulted in a total loss of engine power due to fuel contamination. 1
The student pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and collision with tree(s). 1
A total loss of engine power during the landing roll, and an engine fire during a subsequent engine restart attempt. Neither the cause for the loss of engine power nor the source of the fire could be determined because the airplane was not made available for examination. \r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion. Contributing to the accident was the pilot's incorrect brake application during the runway excursion, which resulted in a nose over. 1
The pilot's inadequate preflight planning, which resulted in his attempt to take off near the airplane’s maximum gross weight in high-density altitude conditions that degraded the airplane’s takeoff and climb performance and resulted in an aborted takeoff and subsequent runway excursion. 1
The pilot's failure to maintain sufficient airspeed during a go-around, and the flight instructor's delayed remedial action, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the airplane's nose-up trim setting, which further increased its angle of attack upon application of engine power during the go-around. 1
The pilot's failure to maintain pitch control during the landing flare, which resulted in abnormal runway contact, a nose wheel landing gear collapse, and runway excursion. 1
The fatigue failure of the No. 3 cylinder exhaust valve, which resulted in a total loss of engine power at low altitude after takeoff. 1
The mechanic's failure to properly secure the bolt connecting the throttle cable to the carburetor during the installation of the carburetor, which resulted in a loss of engine power. 1
The pilot's decision to continue visual flight into an area of instrument meteorological conditions, which resulted in the pilot experiencing a loss of visual reference and subsequent controlled flight into terrain. Contributing to the accident were the pilot's self-induced pressure to complete the flight and the operator's failure to maintain operational control over the flight. 1
The pilot’s failure to maintain airspeed while on final approach, which resulted in an exceedance of the airplane’s critical angle of attack and a subsequent aerodynamic stall. 1
The pilot's failure to maintain terrain clearance while on approach to land in flat light conditions. Contributing to the severity of the pilot's injuries was the inadequately restrained internal cargo, which shifted forward during the impact and struck the pilot and/or the pilot's seat. 1
The student pilot’s inadequate preflight and inflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's failure to compensate for the gusting wind conditions during a short-field landing and the designated pilot examiner's delayed remedial action, which resulted in the wing tip contacting the runway during the go-around. 1
The flight instructor's incorrect pitch control during the landing flare, which resulted in a tail strike. 1
The pilot’s failure to extend the landing gear due to his distraction with the flaps, his misinterpretation of the landing gear warning horn, and his failure to verify that the landing gear were down, which resulted in a landing with the gear retracted. \r\n\r\n\r 1
The flight instructor and pilot receiving instruction's omission to use an appropriate checklist and extend the landing gear prior to landing, which resulted in substantial damage to the aircraft's fuselage and bulkhead. 1
The pilot's decision to land with a quartering tailwind and failure to maintain directional control during the landing roll, which resulted in a runway excursion and ground loop. 1
The pilot's failure to maintain directional control during the aborted landing in gusty wind conditions, which resulted in a collision with a fence. 1
The pilot's failure to maintain directional control during the landing roll in crosswind conditions, which resulted in a ground loop and substantial damage to the right wing. 1
The helicopter flight instructor candidate's improper execution of the autorotation, resulting in abnormal ground contact and subsequent damage to the vertical stabilizer and tail rotor drive assembly. 1
The pilot's decision to fly into a canyon without sufficient room to reverse course if necessary, which resulted in an emergency landing, loss of directional control, collision with terrain, and a post-crash fire. 1
Maintenance personnel's improper installation of the elevator bolt, which resulted in a loss of elevator control during landing. 1
The pilot's exceedance of the airplane’s critical angle of attack while maneuvering and his improper decision to maneuver low over a home, which resulted in an aerodynamic stall at too low of an altitude to recover.\r\n\r\n\r 1
The student pilot's failure to maintain pitch control during the landing flare, which resulted in an abnormal runway contact, porpoise, nose gear collapse, runway excursion, and impact with terrain. 1
The pilot's loss of airplane control while operating in instrument meteorological conditions with only a partial instrument panel due to a failure of the airplane's vacuum pump. Contributing to the accident were the pilot's spatial disorientation and the operation of the vacuum pump beyond the 6-year time limit recommended by the vacuum pump manufacturer. 1
The overstress fracture and subsequent separation of the left main landing gear axle due to a hard landing, which resulted in the pilot’s inability to maintain directional control of the airplane.\r\n\r 1
The instructed pilot's interference with the flight controls during landing, which resulted in the flight instructor's inability to maintain directional control, resulting in a runway excursion and substantial damage to the firewall and left wing spar. 1
The flight instructor's failure to monitor outside the helicopter during hover flight, which resulted in a collision with terrain and rollover. 1
The pilot's failure to adequately secure the aircraft while manually starting the engine from outside the cockpit, which resulted in the unmanned aircraft becoming airborne and colliding with a hangar roof. 1
The pilot's failure to maintain directional control of the airplane during the landing, which resulted in a ground loop.\r 1
The pilot's failure to maintain directional control of the airplane during the landing roll resulting in substantial damage. 1
The pilot's failure to maintain directional control while landing with an inoperative right brake. \r\n\r 1
The pilot's failure to maintain clearance from a hangar during taxi for departure. 1
The pilot's decision to perform a touch-and-go on unsuitable terrain, which resulted in a loss of directional control and a rollover. 1
The nosewheel fairing becoming packed with debris during landing on the soft field due to a gap between the nosewheel tire and the fairing, which resulted in a loss of control and subsequent nose-over. 1
The pilot's failure to remain a safe distance from obstacles while taxiing to parking, resulting in the airplane's wing striking a light pole. 1
The failure of the helicopter’s windscreen for reasons that could not be determined based on the available information, which resulted in substantial damage to the main rotor blades and horizontal stabilizer.\r\n\r 1
The pilot's decision to continue an unstabilized instrument approach in instrument meteorological conditions, which resulted in controlled flight into terrain. 1
The pilot's loss of airplane control during descent following a loss of engine power for reasons that could not be determined because postaccident examinations and engine test-runs of both engines revealed no evidence of any mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot's inability to maintain directional control during the landing roll as a result of a piece of concrete from the runway impacting the right main landing gear brake during the landing roll, resulting in a right brake failure and a ground loop. 1
The pilot's abnormal runway contact during the landing flare, which resulted in a porpoise, aerodynamic stall, impact with terrain, and nose over. 1
Failure of maintenance personnel to comply with the engine manufacturer’s mandatory service bulletin, which resulted in failure of the mechanical fuel pump diaphragm and a subsequent total loss of engine power.\r 1
The pilot's failure to adequately manage the available fuel supply, resulting in fuel starvation and a total loss of engine power. 1
The pilot's loss of directional control during takeoff resulting in a decision to rotate early, and a collision with a hangar and subsequent fire. 1
The pilot's incorrect brake and power application during landing, which resulted in a runway overrun, collision with a dirt berm, nose gear collapse, and nose-over. 1
The pilot's decision to abort the takeoff, which resulted in a hard landing and nose landing gear collapse. 1
The flight crew's failure to install the tail stand prior to passenger boarding, which resulted in a tail strike. 1
Loss of engine power due to failure of a connecting rod. \r 1
The pilot’s improper preflight weather planning, fuel planning, and fuel management, which resulted in fuel starvation and a loss of engine power. Contributing to the severity of the accident was the pilot's initiation of the landing flare at a high altitude, which led to a subsequent hard landing.\r\n\r 1
An encounter with wake turbulence that resulted in a flight attendant injury. 1
The pilot's failure to maintain directional control during takeoff, which resulted in an aborted takeoff, runway excursion, collision with a fence, and substantial damage. 1
The pilot's decision to exit the helicopter with the engine and rotors turning and the selection of unsuitable terrain for a landing, which resulted in a roll over. 1
The pilot's inadequate visual lookout, which resulted in his failure to maintain clearance from guy wires during an aerial application flight. Contributing to the accident was the pilot's reduced ability to see the guy wires due to sun glare. 1
The pilot's failure to replace the oil filler cap following the preflight inspection, which resulted in a loss of engine oil and engine power, an emergency landing, and impact with terrain. 1
The pilot's use of an improper soft-field takeoff procedure, which resulted in the airplane having insufficient airspeed to climb out of ground effect and its subsequent impact with trees near the departure end of the runway. 1
The pilot's inadequate preflight fuel planning, his reliance on the fuel flow indicator without verifying the initial fuel level input, and his improper decision to continue the flight with the low fuel light illuminated, which resulted in fuel exhaustion, the subsequent total loss of engine power, and a forced landing on steep, rocky terrain. \r\n\r\n\r\n\r 1
an encounter with convective turbulence that resulted in a flight attendant injury. 1
The pilot's failure to maintain airspeed and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall while maneuvering. 1
The pilot's failure to properly calculate the fuel consumption rate and to properly monitor the fuel status in flight, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent forced landing, runway excursion, and impact with a fence. 1
The pilot’s failure to maintain a proper climb rate after takeoff and the subsequent collision with transmission line structures.\r 1
The pilot's decision to takeoff over the maximum takeoff weight in high density altitude conditions, which resulted in an inability to climb above terrain, a forced landing, and a collision with a road sign. Contributing to the accident was the pilot's decision to fly in a fatigued mental state. 1
The student pilot’s inadvertent actuation of the fuel shutoff valve, which led to a total loss of engine power, forced landing, and impact with a hangar. Contributing to the outcome was maintenance personnel’s inadequate inspection of the fuel shutoff system during the most recent annual inspection. Contributing to the flight instructor’s injuries was the detachment of the rear seat shoulder harness assembly.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion, and a nose over. 1
The pilot's long landing and failure to stop the airplane on the runway, resulting in an overrun, impact with a fence, and substantial damage to the airplane. 1
The pilot's failure to maintain a wings-level attitude during takeoff in gusty wind conditions, which resulted in the right wing striking the ground, a loss of lateral bank control, and a nose over during the subsequent landing. 1
The pilot's inadvertent power reduction during landing, which resulted in a runway undershoot, collision with the runway threshold, nose and right main landing gear collapse, and runway excursion. 1
The tower controller’s failure to identify and mitigate jet blast from an airplane conducting an engine test run, and the effect of the jet blast on landing traffic, which resulted in a runway excursion when a landing airplane encountered the blast. Contributing to the accident was the lack of procedures for positioning high-powered airplanes conducting engine test runs in the airport movement area. 1
The pilot’s failure to select the correct route through the mountains as a result of geographic disorientation, and his subsequent visual flight into instrument meteorological conditions, which resulted in collision with terrain.\r 1
The inadequate maintenance of the lower forward clutch actuator bearing for a prolonged period of time, which resulted in a bearing failure. Contributing to the accident was an erroneous maintenance entry, which resulted in the helicopter being operated beyond its mandatory airframe overhaul time. 1
The pilot's hard landing, resulting in a runway excursion and substantial damage to the firewall. 1
The pilot exceeded the critical angle of attack during takeoff which resulted in an aerodynamic stall and impact with terrain. 1
The pilot's insufficient clearance from a power line during aerial application operations, which resulted in a power line strike, a forced landing on unsuitable terrain, loss of directional control, and collision with terrain. 1
The pilot's landing area overshoot and failure to maintain surface speed and braking capability, which resulted in a runway overrun and a collision with a fence. 1
The pilot’s intentional flight into a silo. 1
The pilot receiving instruction's incorrect action of interfering with the flight controls and failure to comply with the flight instructor's commands, which resulted in a loss of lateral bank control and a rollover. 1
The pilot’s failure to use the emergency procedures checklist for generator failures or for gear extension following a loss of electrical power due to the separated flag terminal of a diode in overstress, which resulted in a gear-up landing.\r 1
The student pilot’s failure to maintain directional control during takeoff, which resulted in a runway excursion. \r\n\r 1
An incorrect and unapproved repair of the engine compressor diffuser performed by a machinist at a repair facility, which resulted in failure of the compressor diffuser aft plate and a partial loss of engine power. 1
The total loss of engine power due to fuel exhaustion, which resulted in a forced landing and a collision with a tree.\r 1
The student pilot’s failure to compensate for gusting wind conditions during landing, which resulted in a bounced landing. Contributing to the accident was the flight instructor’s inadequate review of the weather conditions with the student and his inadequate supervision of the student’s solo cross-country flight. \r 1
The pilot's incorrect pitch control during the landing, which resulted in a hard bounced landing, and subsequent left main landing gear collapse, a runway excursion, and a collision with a runway sign. 1
The partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot’s failure to abort the takeoff after the airplane’s initial failure to climb.\r 1
The failure of the airplane’s right steering rod end, which resulted in the pilot’s inability to maintain directional control.\r\n\r 1
The glider's encounter with insufficient atmospheric lift conditions where the lift was not sufficient to maintain soaring flight, which resulted in an off-airport landing. 1
The pilot's failure to attain adequate airspeed during the initial climb after takeoff, which led to the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
The pilot's failure to maintain adequate airspeed during a climbing turn after takeoff, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's self-induced pressure to quickly transport his cousin for urgent dental care. 1
The pilot's abnormal runway contact during the landing flare, which resulted in a porpoise, hard landing, and runway excursion. 1
The failure of both pilots to land the airplane on the remaining runway when a sufficient rate of climb could not be attained. Contributing to the accident was a reduction of available engine power due to severe camshaft lobe wear. 1
The pilot's hard landing in gusting wind conditions. Contributing to the accident were the pilot's unfamiliarity with the newly purchased airplane's throttle resulting in an unstable approach, and the pilot's ability to compensate for the wind. 1
The pilots’ failure to maintain adequate control of the airplane during the initial climb after takeoff, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall at a low altitude. Contributing to the accident was the operation of the airplane above its maximum takeoff weight at a high density altitude at the time of the accident.\r 1
The student pilot's unnecessary pedal application and the flight instructor's delayed remedial action resulting in a loss of directional control, runway excursion and ground impact during the aborted landing. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's decision to depart without obtaining flight training in the accident airplane. \r 1
The pilot’s failure to maintain clearance from a power line.\r 1
The pilot's improper go-around procedure that did not ensure that the airplane was at a safe airspeed before raising the flaps, which resulted in exceedance of the critical angle of attack and resulted in an accelerated aerodynamic stall and spin into terrain. Contributing to the accident were the initial local controller's decision to keep the pilot in the traffic pattern, the second local controller's issuance of an unnecessarily complex clearance during a critical phase of flight. Also contributing was the pilot's lack of assertiveness. 1
The intermittent failure of the left brake master cylinder, which resulted in asymmetric braking and the subsequent loss of directional control during the landing roll. 1
The flight instructor's failure to maintain pitch control during the simulated engine failure after takeoff, which resulted in a hard landing, landing gear(s) collapse, and wing damage. 1
The student pilot's incorrect landing flare and the flight instructor's delayed remedial action, which resulted in a hard landing, nose wheel collapse, and runway excursion. 1
The pilot's failure to apply additional engine power when he applied collective input, which led to a loss of rotor speed and the exceedance of the helicopter’s performance capability. 1
The pilot's failure to attain an adequate climb gradient, which resulted in a collision with a tree and subsequent substantial damage to the left wing and aileron. 1
The fuel line failure between the fuel transducer and the carburetor, which resulted in a total loss of engine power and subsequent forced off airport landing. 1
An evasive maneuver during the landing roll to avoid deer on the runway, which resulted in a runway excursion and a nose over. Contributing to the accident was the lack of an airport perimeter fence. 1
The airplane struck a deer during the landing flare resulting in substantial damage. 1
The pilot's failure to maintain adequate airspeed during a go-around which led to the airplane exceeding its critical angle-of-attack and experiencing aerodynamic stall. 1
The pilot's failure to maintain directional control during the go-around in gusty crosswind conditions, which resulted in a collision with trees. 1
\r\nThe failure of the right wing due to a fatigue fracture of the right outboard wing forward spar lower fitting. Contributing to the accident was the routine operation of the airplane over its certificated maximum gross weight and the operator's improper or inadequate maintenance practices, which failed to apply a service life factor to the airplane to account for its overweight operation and also failed to detect the extensive corrosion throughout the airplane. 1
The pilot's failure to maintain directional control during the landing roll in gusty wind conditions, which resulted in a runway excursion and substantial damage to the firewall. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack while maneuvering after a go-around, which resulted in an aerodynamic stall. 1
The ground crewmember's failure to let go of the balloon's basket when the balloon began to ascend. Contributing to the accident was the pilot's failure to maintain control of the balloon after landing, which resulted in an inadvertent takeoff. 1
A failure of the electric fuel boost pump, which resulted in fuel starvation and a subsequent total loss of engine power.\r 1
The pilot's decision to land on terrain unsuitable for a wheel equipped airplane. 1
The pilot's premature rotation and failure to attain sufficient airspeed required for a sustained climb, resulting in a runway overrun and collision with a fence. 1
The amphibious airplane pilot's incorrect pitch attitude during landing on choppy water, which resulted in a nose over, and substantial damage to the fuselage. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack during a steep turn at a low altitude, which resulted in an aerodynamic stall/spin at too low of an altitude to recover. 1
The pilot's improper descent rate during landing, which resulted in a bounced landing, failure of the tailwheel suspension leaf spring, a ground loop, and substantial damage to the left wing. 1
The non-pilot owner's decision to start the helicopter while awaiting the pilot's arrival, which resulted in a loss of yaw control and a rollover. 1
The pilot's failure to maintain directional control during landing, which resulted in an impact with a fence and trees. 1
The pilot's improper decision to continue a takeoff with a partial loss of engine power that occurred early in the takeoff roll. The reason for the partial loss of engine power could not be determined because postaccident fire damage to the engine precluded an examination. 1
The pilot's failure to ensure that the tailwheel pin was in the locked position prior to the takeoff roll, resulting in a runway excursion, ground loop, and substantial damage. 1
The pilot's failure to maintain helicopter control during takeoff. Contributing to the accident was the pilot's impairment due to his combined use of alcohol and diphenhydramine, which led to his improper decision to fly after drinking alcohol and degraded his ability to maintain control of the helicopter. 1
The flight instructor's delayed remedial action and his failure to remain vigilant as the helicopter entered the weathercock stability region, in gusting wind conditions, resulting in loss of tail rotor effectiveness and ground impact. 1
The pilot's failure to maintain directional control during the landing roll in gusting wind resulting in a runway excursion and substantial damage. 1
The student pilot's selection of unsuitable terrain for landing, which resulted in the helicopter rolling over during landing, and substantial damage to the tail boom. 1
A total loss of engine power due to fracture of the piston pin, which led to fatigue cracking and eventual fracture of the adjacent connecting rod.\r 1
A loss of engine power during cruise flight for reasons that could not be determined because a test run of the engine did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation. Contributing to the accident were the tree stumps at the forced landing site. 1
A total loss of engine power due to fuel starvation and the pilot's mismanagement of the available fuel. 1
The pilot's failure to maintain directional control during the landing, which resulted in a runway excursion, left main landing gear collapse, and a nose down. Contributing to the accident was the wind shift. 1
The pilot's failure to attain a positive rate of climb during takeoff from a service truck, which resulted in an impact with terrain and substantial damage to the tail boom and fuselage. 1
The student pilot's failure to see and avoid powerlines during landing, and the flight instructor's delayed remediation when the student cut the base to final turn short, resulting in a wire strike and collision with terrain. Contributing to the accident was the flight instructor's lack of vigilance in monitoring the area for hazards, and the low light condition. 1
The pilot's failure to maintain directional control during landing, which resulted the right wing impacting the ground, and nose down. 1
The pilot's failure to maintain directional control during takeoff, which resulted in an impact with a peach tree(s). 1
A total loss of engine power for reasons that could not be determined because the engine ran normally during a postaccident engine test run with no anomalies noted. 1
The pilot’s failure to maintain the proper glidepath during the night visual approach, which resulted in impact with a runway threshold light, and his improper landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's fatigue. \r 1
The pilot's failure to maintain directional control during the landing flare at night, which resulted in an impact with a runway light and runway sign. 1
The pilot's exceedance of the critical angle of attack during the landing flare, which resulted in an aerodynamic stall, hard landing, right main landing gear collapse, runway excursion, and nose over. 1
The pilot's failure to maintain directional control during the landing roll in a quartering headwind. 1
The student pilot's failure to maintain directional control during the landing roll in gusty wind conditions, which resulted in a runway excursion and nose over. 1
The student pilot's failure to maintain adequate fuel levels, which resulted in fuel starvation, a loss of engine power, and a forced landing. Contributing to the accident was the flight instructor's failure to monitor the fuel levels. 1
The pilot's deviation from his original flight plan, which resulted in becoming lost in mountainous terrain at night, fuel exhaustion, loss of engine power, and a collision with power lines during a forced landing. 1
The pilot's failure to maintain directional control during the takeoff roll and the flight instructor's delayed remedial action, which resulted in runway excursion, and collision with a ditch. 1
A partial loss of engine power for reasons that could not determined, because an examination and test run of the engine did not reveal any anomalies that would have contributed to the loss of engine power. 1
The student pilot's failure to maintain directional control during takeoff, which resulted in a collision with runway signs. 1
The pilot's failure to maintain a proper airspeed during the landing approach, which resulted in an improper flare and hard landing. 1
The pilot's selection of an unsuitable takeoff area resulting in an airplane nose over during the takeoff roll. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and ground loop. 1
A loss of engine power as a result of a failure of the primary and backup ignition system.\r 1
The pilot's improper landing flare in gusting wind conditions, which resulted in a hard landing. 1
The pilot's mismanagement of the airplane's fuel supply, which resulted in a total loss of engine power due to fuel starvation. 1
The student pilot's incorrect pitch control during the landing flare, which resulted in abnormal runway contact and a substantially damaged firewall. 1
The pilot's improper judgment in conducting a flight in a gyroplane over mountainous terrain near its demonstrated maximum operating altitude and his subsequent failure to maintain adequate clearance with terrain during cruise flight in turbulent weather conditions. 1
The uncertificated pilot's failure to maintain pitch and directional control, which resulted in an impact with terrain and a rollover. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and nose over. 1
The pilot-in-command’s failure to extend the landing gear before landing and his failure to use the Before Landing checklist. Contributing to the accident was the pilots’ failure to maintain a sterile cockpit during landing.\r\n\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in runway excursion, and collision with terrain. 1
The pilot's incorrect pitch control during the landing flare in gusty crosswind conditions, which resulted in a hard landing and nose over. 1
The flight instructor's failure to maintain directional control during the landing roll, resulting in an impact with an unknown object during aborted landing and consequent ground impact. 1
The pilot's failure to properly configure the landing gear and the pilot's inappropriate decision to abort the landing after the propeller had contacted the runway, which resulted in a loss of thrust and a subsequent loss of control of the airplane. 1
The pilot's failure to execute a go-around following an unstabilized approach, which resulted in a bounced landing and runway excursion. 1
The pilots' failure to maintain adequate airspeed while executing a simulated engine failure and landing maneuver, which resulted in the wing's critical angle of attack being exceeded and a subsequent aerodynamic stall and loss of control. 1
An overstress failure of the left main landing gear attachment bolts, which resulted in the left main landing gear collapse.\r 1
The pilot's excessive nose high pitch attitude, which resulted in a tail strike during the landing flare. 1
The pilot's failure to maintain clearance from rising mountainous terrain while flying in instrument meteorological conditions. Contributing to the accident was the loss of radio communications for a reason that could not be determined because of the extensive impact and thermal damage to the airplane. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion, ground loop, right main landing gear collapse, and substantial damage to the right wing. 1
The pilot's failure to maintain clearance from a cable while maneuvering at a low altitude over water, which resulted in a collision with a cable and impact with water. 1
The pilot's failure to maintain directional control and lateral bank control during the aborted landing, which resulted in collision with terrain. 1
The pilot's failure to maintain clearance from trees while maneuvering at low altitude in mountainous terrain. 1
The engine’s decreased performance due to high-density altitude conditions and a partially obstructed fuel injector nozzle. Contributing to the pilot's decision to perform an off-field landing was the anomalous high exhaust gas temperature reading. 1
The pilot's exceedance of the critical angle of attack on final approach in turbulent conditions, which resulted in an aerodynamic stall and collision with terrain. 1
A preexisting stress rupture that initiated at a spot weld in the turbocharger v-band exhaust clamp, which resulted in the failure of the clamp and separation of the exhaust tailpipe, an in-flight fire, and subsequent impact with terrain. 1
The pilot's improper decision to allow the passenger to attempt a landing, which resulted in a loss of control during landing with a quartering tailwind. Contributing to the severity of the pilot's injuries was the separation of the deteriorated shoulder harness. 1
The student pilot's inadequate flare which resulted in a hard landing, loss of directional control, and a runway excursion. 1
Internal failure of the main electrical contactor, which resulted in a complete loss of electrical power and an inability to extend the landing gear through normal means. 1
The pilot's failure to ensure that the landing gear was in the down and locked position prior to touchdown. 1
The failure of the No. 5 exhaust valve key spring, which resulted in a total loss of engine power. 1
The pilot's failure to maintain a stabilized approach and landing, which resulted in a hard landing, loss of directional control, runway excursion, and collision with a parked airplane. 1
A collision with terrain for reasons that could not be determined as the investigation did not reveal any postaccident anomalies with the airplane or pilot. 1
The pilot's failure to avoid the metering loop pole during an aerial application. 1
\r\n\r\nThe pilot's inability to return to the departure airport due to an unspecified in-flight emergency for reasons that could not be determined during a postaccident examination of the airplane. 1
An encounter with turbulence due to updrafts and/or dust devils that resulted in mast bumping and an in-flight break-up. 1
The pilot's severe impairment from the combined effects of high levels of ingested alcohol as well as three impairing medications (zolpidem, lorazepam, and diphenhydramine), which resulted in his decision to attempt an aerobatic maneuver that the airplane was not approved for. 1
The pilot's failure to maintain clearance from the power line during low reconnaissance flight, which resulted in a power line strike, loss of control, and a subsequent hard landing. 1
A total loss of engine power due to the failure of the engine-driven fuel pump. \r 1
A partial loss of engine power during takeoff due to vapor lock. Contributing to the accident was the student pilot's failure to notice that the engine had exceeded multiple temperature limits and that the fuel flow had become erratic during an extended ground hold, which led to the vapor lock. 1
The pilots' improper inflight fuel management, which resulted in a total loss of engine power due to fuel starvation. 1
A total loss of engine power due to fatigue failure of the camshaft drive gear teeth. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a ground-loop, main landing gear collapse and collision with terrain. 1
The pilot's failure to maintain helicopter control while hovering in gusting tailwind conditions, resulting in the tailboom striking a light pole and impact with terrain. 1
The pilot’s failure to maintain adequate airspeed and her exceedance of the airplane’s critical angle-of-attack during a low-altitude turn, which resulted in an aerodynamic stall.\r\n\r 1
The flight instructor's exceedance of the airplane's critical angle of attack during landing, which resulted in an aerodynamic stall and a collision with terrain. 1
An encounter with instrument meteorological conditions, which resulted in the pilot's spatial disorientation and a loss of airplane control.\r\n\r 1
The pilot's failure to maintain directional control while landing in crosswind conditions. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in runway excursion, impact with a ditch, and nose over. 1
The pilot's diverted attention during the approach for the precautionary landing, which resulted in low airspeed, an exceedance of the airplane’s critical angle of attack, and a subsequent aerodynamic stall. Contributing to the accident was the control system vibration and the airplane’s lack of a stall warning system. 1
A hard landing on rough terrain due to a faulty deployment of the airplane’s airframe parachute system following a partial loss of engine power for reasons that could not be determined, because postaccident examination revealed no malfunctions or anomalies that would have precluded normal operation. Contributing to the accident was the low altitude deployment of the parachute system. 1
The student pilot's inadequate preflight inspection/planning, which resulted in fuel exhaustion, loss of engine power, and impact with terrain. 1
A total loss of engine power due to inadequate maintenance of the oil filter adapter, which resulted in an oil leak and subsequent oil starvation to the engine. 1
The failure of the airplane engine drive belt during the takeoff, resulting in a forced landing and impact with terrain. 1
The pilot's failure to maintain clearance from trees during final approach. 1
The pilot's loss of directional control during the landing touchdown, resulting in a runway excursion and substantial damage to the both wings. 1
The pilot's failure to maintain the glide path required for landing in the off-field landing zone. 1
The pilot's inadvertent input of the right tail rotor pedal, which resulted in a loss of directional control and an impact with service equipment. 1
The steep descent to ground impact for reasons that could not be determined based on the available evidence. 1
The student pilot's failure to maintain an adequate glide path during landing, which resulted in the airplane landing short of the runway and the nose wheel impacting the runway edge and substantial damage to the firewall. 1
The pilot's failure to maintain an adequate rate of descent while landing, which resulted in a hard landing, short of the runway. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and a collision with a concrete barrier wall. 1
The failure of the No. 4 cylinder head, which resulted in an engine fire and subsequent damage to the wing structure. 1
The misalignment of the right main landing gear, which resulted in the failure of the landing gear to retract and extend properly. Also causal was the pilot's failure to have the airplane inspected after a hard landing that had resulted in substantial damage to the right wing.\r 1
A total loss of engine power due to fuel starvation as the result of a pinched fuel line. Contributing to the accident was the pilot’s maneuvering just before landing, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. \r\n
\r 1
The pilot's decision to land with a tailwind, resulting in a runway overrun and collision with a highway road embankment. 1
The pilot's failure to perform an adequate preflight inspection, which resulted in a loss of control due to an improperly-rigged rudder. Contributing to the accident was the pilot's failure to implement and follow proper flight-testing plans. 1
The pilot receiving instruction's failure to maintain proper airspeed and descent rate, and the flight instructor's delayed remedial action during the landing flare, which resulted in a hard landing and landing gear collapse. 1
The pilot's failure to maintain airspeed following a partial loss of engine power for reasons that could not be determined during postaccident examination, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. \r\n\r 1
The inadequate maintenance and inspection of the throttle control arm, which resulted in its in-flight separation and the subsequent loss of engine power. 1
The pilot's failure to maintain adequate airspeed while departing in a heavily loaded airplane at high density altitude, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall, landing hard, and overrunning the runway. 1
The total loss of engine power during cruise flight due to carburetor icing. Contributing to the accident was the pilot’s delay in applying carburetor heat during flight while operating in an area conducive to carburetor icing.\r 1
An in-flight collision with a bald eagle, which resulted in substantial damage to the left wing.\r 1
The pilot's selection of unsuitable terrain for taxi, resulting in a tail strike and aft fuselage substantial damage. 1
The pilot's failure to attain the proper touchdown point and the airplane’s subsequent collision with obstacles during an attempted go-around. 1
A catastrophic engine failure of undetermined origin, which resulted in a total loss of engine power and subsequent ditching. Contributing to the accident was the pilot's failure to jettison the canopy before ditching, which resulted in his inability to egress the airplane as it sank. 1
The pilot's failure to use supplemental oxygen as required during high-altitude flight, which resulted in his loss of consciousness following a loss of cabin pressurization. Contributing to the accident was the separation of the air conditioning system's primary pressurization duct and the subsequent failure of the aft pressure bulkhead check valve flapper due to progressive weakening from age. 1
An in-flight loss of control for reasons that could not be determined because examination of the wreckage did not reveal any evidence of preimpact malfunctions or failures that would have precluded normal operation. 1
The pilots' loss of control that necessitated the activation of the parachute system and the airplane manufacturer's inadequate design of the front parachute anchor attachment structure, which resulted in a failure of the parachute after it was deployed in flight and precluded the pilots from safely recovering from the spin. 1
The pilot's inadequate fuel planning, resulting in fuel exhaustion and substantial damage to the firewall during the forced landing. 1
The pilot’s decision to conduct extended inverted flight, which resulted in a total loss of engine power due to fuel flow disruption. Contributing to the accident was his decision to conduct aerobatic maneuvers at low altitude, which precluded him from selecting a suitable landing site following the total loss of engine power. \r 1
The failure of the left engine due to water contamination and the pilot's subsequent failure to maintain single-engine minimum control airspeed, which resulted in an uncontrolled descent. Contributing to the accident was the pilot's lack of total and recent flight experience in the accident airplane make and model, which reduced his capacity to manage an inflight loss of power. 1
The pilot's failure to maintain clearance from trees on final. 1
The failure of the right main landing gear assembly due to overstress fracture. \r\n\r 1
The flight's encounter with unforecast extreme turbulence, which resulted in a loss of airplane control and structural damage. 1
The pilot's failure to maintain directional control during the landing roll in gusting crosswind conditions, which resulted in a runway excursion and impact with a ditch.\r\n\r\n\r 1
The pilot's failure to conduct a go-around in a timely manner, which resulted in impact with trees and a powerline. 1
A loss of engine power for reasons that could not be determined due to extensive postcrash fire damage. Also causal was the pilot's loss of airplane control, resulting in an aerodynamic stall and subsequent impact with terrain. 1
The pilot's abrupt flight control inputs, likely above the maneuvering speed, in severe winds and turbulence conditions, which resulted in an in-flight breakup. 1
The pilot's decision to takeoff in high crosswind conditions resulting in the inability to maintain an adequate crosswind correction, consequently failing to maintain directional control and departing the runway, and subsequently colliding with fixed airfield equipment. 1
The pilot's failure to maintain directional control during the landing touchdown resulting in a runway excursion, a collision with an object, and an impact with terrain. 1
The pilot’s failure to ensure that the fuel selector was properly positioned before takeoff, which resulted in the subsequent total loss of engine power due to fuel starvation.\r\n
\r 1
The total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the engine revealed no anomalies that would have precluded normal operation. 1
A total loss of engine power on takeoff, which resulted from a sudden over-temperature condition due to an improperly adjusted fuel control unit and the deteriorated condition of the fuel nozzles. 1
The pilot’s operation of the airplane below the glideslope and off course during a night, instrument approach, which resulted in a collision with trees and terrain.\r 1
The pilot's incorrect use of brake pressure during the landing roll, which resulted in a nose over. 1
The pilot's loss of airplane control while maneuvering during low-level flight for reasons that could not be determined because examination of the airframe and engine did not reveal any preimpact anomalies. 1
The non-instrument-rated pilot's decision to operate in dark night conditions with low clouds, which resulted in a loss of control due to spatial disorientation. Contributing to the accident was the pilot's use of methamphetamine, which impaired his decision-making abilities. 1
The noninstrument-rated pilot's improper decision to attempt a flight under visual flight rules at night in instrument meteorological conditions to an unlit airstrip, which resulted in controlled flight into terrain. 1
A loss of control while hovering for reasons that could not be determined, because postaccident examination revealed no mechanical anomalies or failures that would have precluded normal operation. 1
Improper maintenance performed on the left magneto which led to a loss of engine power. Contributing to the incident was the pilot's failure to check the magnetos in flight in compliance with manufacturers guidance regarding rough running engine. The pilot's decision to continue the flight after experiencing the rough running engine contributed to the necessity for a forced landing. \r\n\r\n \r\n\r 1
The student pilot's failure to maintain directional control during the landing, which resulted in a horizontal rotation of the helicopter, and abnormal runway contact. 1
The pilot's failure to maintain clearance from power lines while returning to the airport after becoming distracted by a noncritical flight instrumentation anomaly indication. 1
The pilot's decision to continue the unstabilized approach and landing and his delayed decision to go around with an insufficient climb rate, which resulted with collision with trees. 1
an encounter with turbulence during initial descent.\r 1
The student pilot's abrupt control inputs during the flare, which resulted in an aerodynamic stall. Contributing to the accident was the flight instructor's lack of over sight and delayed reaction while landing. 1
The pilots' decision to conduct an approach and landing in gusting wind conditions, and their failure to maintain control of the airplane during the first approach, which resulted in a wing strike. 1
The pilot's loss of control and collision with terrain while attempting a course reversal after inadvertently entering an area of reduced visibility weather conditions. Contributing to the accident was the pilot's lack of recent experience with night time operations. 1
The pilot's failure to maintain control of the airplane after a cabin door came open in flight, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's misuse of amphetamine. 1
A loss of engine power due to the carburetor’s primary venturi, fuel nozzle, or both separating after takeoff. 1
The student pilot's descent below the prescribed final approach path at night, and flight instructor's failure to correct the student pilot's descent, which resulted in a collision with trees and impact with the ground. 1
The pilot's failure to extend the landing gear before landing.\r\n\r 1
A partial loss of engine power due to a stuck No. 1 cylinder exhaust valve.\r 1
Maintenance personnel's application of an unapproved sealant to the engine case halves during engine overhaul, contrary to manufacturer's instructions, which resulted in lubrication restriction due to a bearing shift and the subsequent internal failure of the engine due to the loss of case through-bolt torque. 1
The pilot's failure to maintain airplane control during the initial climb, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall/spin. 1
The pilot's failure to maintain pitch control during the landing, which resulted in a hard landing, runway excursion and impact with terrain. 1
The pilot’s failure to maintain airspeed and a coordinated turn in the traffic pattern, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall and spin. Contributing to the accident was the pilot’s failure to remove the airframe parachute activation handle locking pin before flight. \r 1
The pilot's failure to obtain the proper touchdown point and speed during a precautionary landing with the engine shut down. Contributing to the accident was an erroneous engine torque indication, which led the pilot to shut the engine down, for reasons that could not be determined during postaccident testing. 1
The total loss of engine power due to fuel starvation as a result of contamination in the right fuel tank and fuel lines, which prevented fuel from flowing to the engine. 1
The non-instrument-rated pilot's decision to fly the airplane in instrument meteorological conditions at high altitude for greater than 30 minutes without the use of supplemental oxygen which resulted in hypoxia, and a subsequent loss of control. Contributing to the accident was the pilot's use of multiple impairing medications. 1
A total loss of engine power during cruise flight due to fuel exhaustion. Contributing to the accident was the improper calibration of the fuel quantity gauge. 1
The pilot's failure to maintain pitch control during the takeoff roll, which resulted in an impact with terrain. 1
The pilot's loss of control during landing on a dolly. Contributing to the accident were the pilot's decision to conduct the flight without an instructor despite multiple flight instructors' recommendations to the contrary, his failure to land on the ramp when he experienced difficulty landing on the dolly, and his impaired decision-making, judgment, and psychomotor performance, due to his use of a combination of two psychoactive drugs. 1
A partial loss of engine power during takeoff for reasons that could not be determined, because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation. 1
The ingestion of a towel from an unsecured storage container at the landing site into the helicopter's fenestron during the landing.\r 1
A loss of airplane control for reasons that could not be determined because examination of the wreckage revealed no mechanical deficiencies. \r 1
The pilot's failure to maintain adequate airspeed while turning to join the final approach leg of the airport traffic pattern with full airplane-nose-up trim, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident were the pilot's mis-use of the forward elevator flight control input with the autopilot engaged, which resulted in the full airplane-nose-up trim; his failure to recognize and correct the mis-trimmed airplane per the emergency procedures; and the excessive control forces required to maintain control of the airplane in the mis-trimmed condition, which resulted in pilot fatigue. 1
The student pilot did not maintain directional control of the airplane and applied excessive right rudder during landing. 1
The partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any preimpact anomalies that would have precluded normal operation. 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation.\r\n\r\n
\r 1
The pilot's failure to maintain directional control during the landing. Contributing to the accident was the distraction of the open cabin door. 1
The pilot’s failure to maintain a proper flare while landing in gusting crosswind conditions, which resulted in a hard landing, overstress fracture of the nose landing gear trunnion, and a subsequent nose landing gear collapse. 1
The pilot's loss of directional control during the landing roll in crosswind conditions, which resulted in a runway excursion, ground loop, and impact with the ground. 1
The flight instructor's inadequate fuel management, which resulted in a total loss of engine power during initial climb due to fuel starvation and a subsequent forced landing. 1
The pilot's excessive braking during the landing roll, which resulted in a nose over. 1
The pilot's decision to fly a traffic pattern following an aborted instrument landing in night instrument metrological conditions, which resulted in a loss of visual reference to the runway, an inadvertent aerodynamic stall, and a collision with terrain. 1
The student pilot's incorrect brake application which resulted in a runway excursion and a nose over. 1
The student pilot's improper flare during landing, which resulted in a bounced landing, and a runway excursion. 1
The pilot's failure to maintain adequate clearance from obstructions while on approach to landing. 1
The loss of engine power due to water and contaminants in the carburetor, which resulted in a forced landing to a wet field. 1
A partial loss of engine power due to a separation of the mixture control cable clamp, which was either not installed or secured correctly during maintenance.\r 1
The overstress fracture between the tail rotor driveshaft and intermediate flex plate for reasons that could not be determined based on the available evidence.\r 1
The pilot's decision to depart from an unsuitable, off-airport site, which resulted in a collision with a tree. 1
Both pilots' failure to maintain visual separation during landing at an uncontrolled airport. Contributing to the accident was the Mooney pilot's lack of prompt evasive action once the biplane had been spotted on the same runway. In addition, the biplane pilots failure to ensure a clear runway. 1
The pilot's failure to visually inspect the fuel level during the preflight inspection, which resulted in fuel starvation and a subsequent off-field landing and impacted terrain. 1
The pilot's failure to maintain pitch control during the landing flare, causing the airplane to balloon and land hard. 1
The pilot's delay in aborting the landing, resulting in a runway overrun and nose over. 1
Maintenance personnel's inadequate inspection of the exhaust system, which resulted in the escape of exhaust gases into the engine compartment and a subsequent total loss of engine power. 1
The flight instructor's failure to maintain control of the helicopter during an autorotation, which resulted in a hard landing. 1
The pilot's loss of directional control during the landing roll, which resulted in a runway excursion and a left main landing gear collapse. 1
The pilot's failure to maintain clearance from the wires while flying at a low altitude resulting in a wire strike, a loss of airplane control, and the consequent impact with terrain. 1
The pilot's loss of pitch control while maneuvering at low altitude, which resulted in a collision with terrain, a left main landing gear collapse, and runway excursion. 1
The pilot' failure to identify the plowed runway width in dusk and flat light conditions, which resulted in a touchdown left of the runway center, an impact with a snow berm, and a ground loop. 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot's loss of directional control during takeoff which resulted in impact with the ground. 1
The pilot’s continued flight into deteriorating, flat light weather conditions, which resulted in impact with mountainous, snow-covered terrain. \r 1
A partial loss of engine power due to failure of the No. 1 connecting rod as a result of multiple fatigue cracks for reasons that could not be determined during on postaccident examination. 1
The pilot's failure to maintain airplane control during the takeoff, resulting in a runway excursion, and airplane nose over. 1
A total loss of engine power for undetermined reasons, because postaccident examination of the engine and fuel system did not reveal any anomalies that would have precluded normal operation. 1
The pilot's failure to maintain pitch control during the landing, causing the airplane to bounce and the nose gear to collapse, resulting in substantial damage to the firewall and frame. 1
The loss of engine power during takeoff due to carburetor icing, which resulted in a forced landing.\r\n \r 1
an encounter with turbulence resulting in a serious injury to a flight attendant. 1
The pilot's failure to maintain clearance from snow-covered terrain in flat light conditions. 1
The noninstrument-rated pilot's improper decision to continue visual flight into instrument meteorological conditions, which resulted in a collision with terrain. 1
The pilot's failure to properly configure the airplane's landing gear prior to landing, which resulted in a gear-up landing. 1
A partial loss of engine power during final approach for reasons that could not be determined based on available information.\r\n\r 1
The pilots’ failure to follow proper procedures in response to a crew alerting system warning for high engine torque values, which necessitated an off-runway emergency landing during which the airplane sustained substantial damage due to postimpact fire. Contributing to the accident was the erroneous engine torque indication for reasons that could not be determined.\r 1
Inadequate inspection and rigging of the landing gear system, which resulted in the subsequent failure and collapse of the left main landing gear during landing. 1
A failure of the front cylinder piston due to the pilot's improper maintenance, which resulted in a total loss of engine power after takeoff. Contributing to the accident was the pilot's decision to return to the runway at low altitude following the loss of engine power, and his failure to maintain adequate airspeed during the turn, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
The overhaul facility's improper and excessive use of an approved lubricant during overhaul of the fuel injection servo, which resulted in a disruption of fuel flow and a total loss of engine power.\r\n\r\n \r\n\r 1
The pilot’s inadequate management of the airplane’s automated systems, which resulted in a loss of control during an instrument approach and necessitated his subsequent deployment of the airplane’s parachute system. \r 1
The pilot’s failure to cycle the surface deice boots during the instrument approach in icing conditions, which led to ice accumulation on the leading edges of the wings and empennage, and resulted in an aerodynamic stall and subsequent hard landing.\r 1
A total loss of engine power for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation. Contributing to the accident was the pilot's exceedance of the airplane’s critical angle of attack during the crosswind turn, which resulted in an aerodynamic stall/spin. 1
The pilot/builder's failure to properly align the Force One Main Bearing, which resulted in a blockage of the oil transfer hole and culminated with a total engine power loss. Contributing to the accident was the pilot's failure to arrest the bank and sink rate prior to impact. 1
An inadvertent collision with a bird while maneuvering during an aerial observation flight. 1
The pilot's failure to actuate the parking brake prior to leaving his seat, resulting in substantial damage. 1
The pilot-rated student's hard landing, which resulted in fuselage damage. 1
The pilot's inadequate preflight planning and inspection, which resulted in a total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's failure to maintain an appropriate traffic pattern altitude and distance from the runway, which may have allowed the airplane to glide to the runway following the loss of engine power. 1
The pilot’s improper fuel management, which resulted in a total loss of engine power due to fuel exhaustion and subsequent impact with terrain.\r\n\r 1
The pilot's inability to correct for a crosswind during the takeoff roll due to the interlinked flight control design, which resulted in a runway excursion, and a collision with terrain. 1
Failure of the left wing in flight due to compression loading from wing loads combined with preexisting damage. 1
The pilot's inadequate fuel management, which resulted in fuel starvation and a total loss of engine power during cruise flight. 1
An inadvertent collision with a bird while on downwind in the airport pattern. 1
The pilot's failure to maintain the glidepath and appropriate airspeed during landing in icing conditions, which resulted in an aerodynamic stall and a hard landing. 1
The pilot's intentional flight into a building. 1
A partial loss of engine power during initial climb for reasons that could not be determined based on available information. Contributing to the accident was the pilot’s decision to conduct the takeoff with observed engine deficiencies. 1
the flight crew's early turn towards the assigned gate because taxiway lighting had been inadvertently turned off by the controller-in-charge which resulted in the airplane leaving the paved surface.\r\n\r\n \r\n\r\nContributing to the accident was the operation of the screen-saver function on the lighting control panel that prevented the tower controllers from having an immediate visual reference to the status of the airfield lighting. 1
Maintenance personnel's failure to properly torque a No. 4 cylinder hold-down nut during engine overhaul, which resulted in the loosening of the nut and the subsequent failure of the studs and through bolts and separation of the cylinder. 1
The pilot's loss of helicopter control in mountainous terrain as the result of operating the helicopter outside the performance envelope of its hydraulic system and encountering the servo transparency phenomenon. Contributing to the accident was the pilot's decision to perform low-level, high-speed maneuvers through mountainous terrain. 1
The flight instructor's inadequate remedial action and the student pilot's failure to maintain yaw control while practicing a stall, which resulted in an unintentional spin. 1
The overhaul facility’s improper and excessive use of an approved lubricant during overhaul of the fuel injection servo, which resulted in a disruption of fuel flow and a total loss of engine power. \r 1
The student pilot's loss of directional control during an aborted landing, which resulted in a collision with a tree and impact with the ground. 1
The pilot's decision to initiate the flight into known adverse weather conditions, in an airplane that was not approved for instrument flight, which resulted in an encounter with instrument meteorological conditions and his subsequent spatial disorientation and loss of airplane control. 1
The noninstrument-rated pilot's decision to conduct and continue the flight despite forecast and en route instrument meteorological conditions (IMC), which were not conducive to safe operation under visual flight rules. Also causal to the accident was the pilot's decision to accept an instrument flight rules clearance and fly into IMC during cruise flight, which led to his spatial disorientation and a resultant loss of control and an in-flight breakup. Contributing to the accident was the pilot's self-induced pressure to arrive at the destination for a party that night. 1
The pilot/owner's failure to maintain the engine in accordance with manufacturer guidance, which resulted in the undetected corrosion of the power takeoff bearing, subsequent bearing failure, and a total loss of engine power. 1
the flight crew's misidentification of the taxiway as the landing runway. 1
The pilot receiving instruction's improper brake application during the flight instructor's aborted landing, which resulted in a loss of directional control and a runway excursion. Contributing to the accident was the flight instructor's decision to perform flight training in an airplane without dual-equipped wheel brakes. 1
A total loss of engine power for reasons that could not be determined because the examination of the wreckage did not reveal any mechanical anomalies that would have precluded normal operation. 1
The pilot's incorrect installation of the rudder horn and failure to properly inspect the installation, which led to a loss of directional control during takeoff. 1
The pilot's improper fuel planning, which resulted in fuel exhaustion. 1
Fuel contamination resulting in the loss of engine power, a forced landing on a highway, and subsequent right wing impact with highway signage. 1
The pilot's loss of control due to spatial disorientation while maneuvering during an instrument approach in instrument meteorological conditions. 1
The pilot's failure to maintain control of the airplane during climbout due to his distraction with raising the landing gear. 1
The noninstrument-rated pilot's continued flight into instrument meteorological conditions at night, which resulted in the loss of visual reference to the ground and his subsequent failure to maintain clearance from trees. 1
The limitations of the air traffic control equipment that prevented the controller's timely recognition of NOTAM information that was effective immediately and resulted in the issuance of an approach clearance to a closed runway. Also causal was the pilots' omission to monitor and transmit their intentions on the airport common frequency. Contributing to the accident was the controller's heavy workload and the limitations of the NOTAM system to distribute information in a timely manner. 1
A partial loss of engine power shortly after takeoff due to an inadequately tightened fuel line. Also causal was the pilot's failure to extend the landing gear once the airplane was in a position to safely land on the runway. 1
The pilot's inadequate preflight inspection and his subsequent failure to maintain airplane control, which resulted in an access door opening after takeoff, and the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
The airplane’s impact with a hillside shortly after takeoff for reasons that could not be determined.\r 1
The student pilot's failure to maintain obstacle clearance while taxiing on the ramp, resulting in a collision with an object. 1
The pilot’s improper in-flight fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to switch fuel tanks after the engine lost power, and his delayed decision to activate the airframe parachute system, which resulted in his serious injury due to incomplete deployment of the system and the airplane’s improper attitude upon touchdown. 1
The pilot's loss of directional control during the touchdown and the subsequent attempted aborted landing which resulted in a runway excursion and impact with terrain. 1
The pilots failure to maintain glide path, descent rate and landing flare, in off shore wind conditions, resulting in a hard landing short of the runway. 1
The failure of the fuel truck driver to see and avoid the taxiing airplane. 1
The student pilot's failure to maintain pitch control during the landing, which resulted in a hard landing. 1
The student pilot's decision to land with a quartering tailwind, resulting in a loss off directional control, excessive brake application, and a nose over. 1
A hard landing which resulted in a loss of directional control, main landing gear collapse, and damage to the left wing spar. 1
A total loss of engine power due to fatigue cracking and separation of the No. 3 cylinder exhaust valve stem.\r 1
The pilot's improper use of the trim, which created a cross-controlled situation and resulted in an aerodynamic stall during the attempted go-around. 1
The pilot's selection of unsuitable terrain for landing, resulting in a collision with terrain. 1
The non-instrument rated pilot's improper inflight decision-making to attempt to outclimb clouds along his planned route rather than reverse course, which resulted in his inadvertent entry into instrument meteorological conditions, spatial disorientation, and a resultant loss of control. The pilot's preexisting medical conditions and his use of impairing medications contributed to his degraded performance. 1
The pilot's decision to intentionally maneuver at a low altitude and his failure to maintain adequate airspeed during the climbing right turn, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
Fracture of the pusher propeller blade due to impact damage from an unknown object while in flight, which resulted in a severe vibration and a loss of thrust. 1
The pilot’s failure to maintain a proper glidepath during a night visual approach, which resulted in impact with a power line. Contributing to the accident was an inoperative precision approach path indicator. \r 1
The pilot's use of excessive brake input during the recovery from the ground loop, which resulted in a nose over. 1
A collapse of the nose landing gear due to a separation of the drag attachment fitting from the airframe. The separation was likely due to preexisting damage from an undetermined event. 1
The pilot's inadequate preflight inspection of the fuel system, which resulted in a total loss of engine power due to water contamination. 1
A partial loss of engine power due to low No. 2 cylinder compression and an inoperative right magneto. 1
The pilot's failure to maintain adequate clearance from a tree during hover flight. 1
The pilot's decision to land with a 20 knot direct cross wind, which resulted in a loss of directional control and the right wing impacting terrain and a subsequent ground loop.\r\n\r\n \r\n\r 1
The pilot's failure to maintain pitch and airspeed control, in conjunction with full flaps, while maneuvering at a low altitude, resulting in a tail-stall and subsequent impact with the ground. 1
The pilot’s application of excessive brake pressure to maintain a safe taxi speed during a long, slightly downhill taxi with a strong quartering tailwind, which resulted in a brake fire. \r 1
the disabled passenger not being properly secured during the transfer from the aisle chair causing him to slide to floor and receive a serious injury. 1
The inadequate visual lookout by the pilots of both airplanes, which resulted in a midair collision. Contributing to the accident was the pilots' failure to tune to, monitor, and communicate over the common traffic advisory frequency their relative positions while in the training area. 1
A total loss of engine power as a result of the separation of the No. 5 connecting rod for reasons that could not be determined based on the available information. 1
The pilot's loss of directional control during the landing roll, which resulted in a runway excursion and an impact with terrain. 1
The pilot's loss of heading control during the go-around in gusty crosswind conditions, which resulted in a collision with trees. 1
The pilot's failure to maintain pitch control during landing, which resulted in a porpoise and structural damage to the airplane. 1
A total loss of engine power during the initial climb due to a fatigue failure of the engine's crankshaft. Contributing to the accident was the pilot's failure to maintain control of the airplane, which resulted in an aerodynamic stall. 1
The pilot's failure to maintain directional control during landing, and his inability to recover due to a malfunction of the tailwheel. 1
The pilot's failure to compensate for wind while maneuvering at a low altitude, resulting in a collision with terrain and a postcrash fire. 1
The pilot's failure to maintain clearance of a cattle-guard fence on landing. Contributing to the accident was his lack of recent flying experience. 1
An engine compartment fire during landing, which resulted in extensive fire damage, for reasons that could not be determined during examinations of the remaining wreckage. 1
An inadvertent encounter with clear air turbulence resulting in a serious injury to a flight attendant. 1
The fracture of the left main landing gear (MLG) wheel axle due to fatigue, which resulted in the separation of the left MLG wheel during takeoff from a dirt airstrip. 1
The improper installation by company maintenance personnel of the securing hardware of a tail rotor driveshaft section, which resulted in that section of tail rotor driveshaft disconnecting and a complete loss of tail rotor thrust. 1
The pilot's failure to maintain airspeed while maneuvering in high density altitude conditions over mountainous terrain, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
The loss of directional control during taxi to the runway as a result of insufficient brake fluid level in the right brake master cylinder, resulting in a taxiway excursion and collision with a drainage culvert. 1
The glider pilot's decision to descend into a broken to overcast cloud layer, which resulted in encountering instrument meteorological conditions and the pilot parachuting from the glider. Contributing to the accident was the pilot's lack of planning for an alternate airport. 1
The pilot's decision to fly into a known area of adverse weather, which resulted in the airplane entering a severe thunderstorm and a subsequent loss of control. 1
The loss of airplane control during takeoff for reasons that could not be determined based on the available information. 1
hot water spilled from a cup onto the flight attendant's arm resulting in a 2nd degree burn. 1
The pilot's inadequate preflight fuel planning and in-flight fuel management, which resulted in fuel exhaustion and a total loss of engine power during approach. Contributing to the accident were the pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack, which resulted in an aerodynamic stall. 1
The airplane’s encounter with a downdraft, and the pilot's decision to maneuver the airplane at a low altitude and airspeed, which provided insufficient time and altitude to recover before impacting terrain. 1
The insufficient right main landing gear (MLG) down-lock tension due to maintenance personnel's failure to perform a rigging procedure during the airplane's most recent inspection, which resulted in the right MLG collapsing during landing. 1
The pilot's delay in deflating the balloon envelope completely after landing, which resulted in a loss of control due to a wind gust. 1
The pilot's inability to maintain airplane control due to an encounter with a downdraft that exceeded the airplane’s climb performance capabilities and resulted in an aerodynamic stall. Contributing to the accident was the pilot’s decision to depart without obtaining a weather briefing. 1
The pilot's failure to maintain adequate airspeed while turning from the downwind to the base leg of the pattern in gusting wind conditions, which resulted in the glider exceeding its critical angle-of-attack and entering an aerodynamic stall/spin at a low altitude. 1
A total loss of engine power for reasons that could not be determined because the airplane was not recovered from the ocean after the ditching.\r 1
The pilot's failure to monitor the airplane's movement on the ground while programming the GPS, which resulted in a collision with a pole. 1
The pilot's failure to maintain directional control during the go-around, which resulted in a collision with terrain. 1
The pilot's failure to maintain sufficient airspeed during approach for landing, which resulted in an inadvertent aerodynamic stall/spin. Contributing to the accident was the pilot’s lack of flight experience in the accident airplane make and model. 1
The pilot’s improper navigation onto a vehicle service road while taxiing and his subsequent distraction while looking at an airport diagram, which led to the airplane impacting a fence post. 1
The student pilot's failure to maintain sufficient airspeed during the base to final turn resulting in an inadvertent aerodynamic stall and impact with terrain during recovery by the flight instructor. 1
The pilot's loss of directional control during the landing roll in crosswind conditions, which resulted in a runway excursion and an impact with an airport sign. 1
The pilot's decision to operate the airplane without the owner’s permission and his lack of preflight planning, which resulted a total loss of engine power due fuel exhaustion. 1
The pilot's diverted attention while taxiing, which resulted in a collision with a fence post. 1
The pilot’s improper in-flight fuel management due to distraction and self-induced pressure, which resulted in fuel starvation and a total loss of engine power. Contributing to the accident was the pilot’s failure to conduct the descent checklist, which included a task to manage fuel.\r 1
The pilot's loss of airplane control in gusting wind conditions and low-level wind shear, following a loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to properly monitor the fuel level inflight because of his unfamiliarity with the fuel system. \r 1
The pilot's inadvertent switching of the fuel selector to the "off" position on final approach, which resulted in a total loss of engine power due to fuel starvation. 1
A loss of control for reasons that could not be determined based on the available information. 1
The total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation. \r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack while executing a return to the runway after takeoff, which resulted in an aerodynamic stall/spin. Contributing to the accident was the pilot’s decision to take off with a known mechanical problem. \r 1
The loss of right engine power on takeoff due to maintenance personnel's failure to properly tighten the crankcase through-studs during cylinder replacement, which resulted in crankshaft fracture. Also causal were the pilot's failure to feather the propeller on the right engine and his failure to maintain control of the twin-engine airplane while maneuvering to return to the airport. 1
A partial loss of engine power during takeoff for reasons that could not be determined, because postaccident examination revealed no evidence of any preimpact mechanical malfunctions or failures. Also causal was the pilot's decision to continue the takeoff following the loss of power. 1
The pilot's failure to maintain directional control during landing, which resulted in runway excursion and collision with terrain. 1
The pilot's inadequate crosswind compensation and subsequent loss of directional control during the landing roll, resulting in a runway excursion and nose over. 1
The flight instructor's failure to perform simulated engine failure training in accordance with manufacturer guidance, including his improper recovery from the maneuver, which resulted in an overshoot of the intended landing zone when the engine did not respond as expected; his selection of an unsuitable landing area; and his decision to perform the maneuver near the helicopter's maximum gross weight, which resulted in a hard landing. 1
The failure of the Thomas coupling at the interface with the main gear box tail rotor output shaft, which resulted in the helicopter's loss of tail rotor control. 1
The airplane's impact with trees and terrain during an off-airport forced landing in dark night conditions following a partial loss of engine power. The reason for the partial loss of engine power could not be determined because postaccident examination did not reveal any mechanical anomalies that would have precluded normal operation. 1
The pilot's delayed extension of the landing gear and his failure to ensure that the main landing gear (MLG) were down and locked before touchdown, which resulted in the collapse of both MLG. Contributing to the landing gear collapse was the mis-set landing gear warning horn, which prevented timely notification that the landing gear were not down and locked. 1
The inadequate securing of the wheeled fire extinguisher's cover which resulted in it being blown off of the fire extinguisher and ingested into the helicopter's fenestron during takeoff, resulting in a loss of directional control. 1
An inadvertent collision with a bird during takeoff enroute climb, which resulted in substantial damage to the right wing. 1
An inadvertent encounter with convective turbulence resulting in serious injury to a flight attendant. 1
The failure of the nose landing gear due to unanticipated fatigue loads.\r 1
The pilot's failure to maintain pitch control during landing, resulting in a porpoise, and firewall damage. 1
The pilot's failure to maintain directional control during the landing roll at night, which resulted in a runway excursion. 1
The pilot’s failure to attain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during takeoff with the airplane’s center of gravity aft of its limit, which resulted in an aerodynamic stall and impact with terrain.\r\n\r 1
The pilot's loss of airplane control during the turn back to the airport after takeoff in high density altitude conditions, which resulted in an inadvertent aerodynamic stall and subsequent spin. Contributing to the accident was the pilot's impaired performance due to his use of a combination of potentially impairing medications. 1
The pilot’s loss of airplane control due to spatial disorientation. Also causal to the accident was the pilot’s impairment by the combined effects of multiple medications and drugs. \r 1
An evasive maneuver during landing to avoid deer on the runway, which resulted in a runway overrun and collision with trees. 1
The student pilot's failure to maintain pitch control during the landing flare, which resulted in a hard landing. 1
The flight crew's mismanagement of the approach and multiple deviations from company standard operating procedures, which placed the airplane in an unsafe situation and led to an unstabilized approach, a descent below minimum descent altitude without visual contact with the runway environment, and an aerodynamic stall. Contributing to the accident were Execuflight's casual attitude toward compliance with standards; its inadequate hiring, training, and operational oversight of the flight crew; the company's lack of a formal safety program; and the Federal Aviation Administration's insufficient oversight of the company's training program and flight operations. 1
The pilot's failure to properly calculate the airplane's weight and balance and center of gravity, which resulted in the tail striking the ground. 1
The student pilot's incorrect control input during takeoff which resulted in a runaway excursion and impact with terrain. 1
A total loss of engine power for reasons that could not be determined during a postaccident test run of the engine. 1
The flight instructor's failure to comply with published instrument approach procedures during an instrument approach in dark night, visual meteorological conditions, which resulted in impact with terrain. Contributing to the accident was the controller's failure to issue a safety alert upon noting the airplane's low altitude. 1
The pilot’s failure to maintain adequate rotor speed while maneuvering at low altitude, which resulted in a descent from which he was unable to recover. Contributing to the accident was the pilot's decision to conduct the flight at or near the helicopter's performance limit, which precluded recovery of the rotor speed in sufficient time to avoid the accident. 1
The pilot exceeded the critical angle of attack during takeoff which resulted in an aerodynamic stall and impact with a wind sock and terrain. 1
The pilot's improper landing flare, which resulted in a nose gear collapse and nose over. 1
The overspeed of the main rotor system for reasons that could not be determined based on the available information.\r 1
The pilot's failure to maintain directional control during the landing roll, resulting in a ground-loop, and substantial damage to the right wing and wing strut. 1
The pilot's failure to maintain directional control during the departure, resulting in substantial damage to the airplanes right wing. 1
The failure of a shaft seal at the nose gear retraction/extension actuator, which resulted in a loss of hydraulic fluid and a main landing gear collapse during landing. 1
The pilot/owner’s inadequate maintenance inspection following a propeller strike, which resulted in the subsequent in-flight propeller separation due to propagation of fatigue cracks in the crankshaft. 1
A total loss of engine power due to a dual magneto failure, as a result of an exceedance of the engine’s operating limitations while maneuvering.\r 1
The pilot of the following airplane failed to maintain adequate spacing during the taxi to the runway, resulting in a collision with the lead airplane. 1
The pilot's continued visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a loss of control. 1
A separation of the canopy mechanism during flight, which resulted in the pilot’s precautionary landing and the airplane’s subsequent collision with a fence post.\r 1
The pilot's failure to maintain airplane control following an aborted landing which resulted in a collision with trees. 1
Maintenance personnel’s improper installation of the carburetor during recent maintenance, including the omission of a required cotter pin, which resulted in a total loss of engine power. 1
An in-flight structural failure due to a severely corroded wing strut, which resulted in a loss of airplane control. 1
The unregistered airplane’s loss of engine power due to piston seizure. Contributing to the accident was the pilot’s loss of airplane control while maneuvering back to the runway.\r 1
The pilot's feathering of the incorrect propeller following a total loss of right engine power due to fuel starvation, which resulted from maintenance personnel’s failure to reinstall the flapper valve in the right main fuel tank. Contributing to the accident was the pilot's impairment due to alcohol consumption. 1
The fatigue failure of the No. 1 cylinder intake valve, which resulted in the partial loss of engine power. 1
The pilot's failure to maintain airplane control after encountering convective shower activity. Contributing to the accident was the pilot's decision to continue flight into an area of known adverse weather. 1
The noninstrument-rated pilot's continued visual flight into adverse weather conditions, which resulted in spatial disorientation, and his subsequent failure to maintain terrain clearance while attempting to land in flat light and whiteout conditions. 1
The pilot's failure to maintain the airplane's descent rate during a precautionary landing, which resulted in hard landing. Contributing to the accident was the pilot's failure to secure the canopy before takeoff, which precipitated the precautionary landing. 1
The pilot's failure to maintain a sufficient climb rate during departure in instrument meteorological conditions, which resulted in controlled flight into terrain. 1
the separation of the flexible fuel line coupling and subsequent fuel leak due to the failure of maintenance personnel to install the required safety lockwire. Contributing to the severity of the accident was the initiation of the evacuation before the right engine was shut down which led to the passenger's injury. 1
The pilot's failure to remove a main rotor blade tiedown, which resulted in substantial damage to a main rotor blade when the engine was started. 1
A momentary jam in the tail rotor control system from an undetermined source, resulting in a torsional fracture of the tail rotor control torque tube and a loss of helicopter control. 1
The student pilot's failure to maintain vigilance, which resulted in a loss of directional control during the landing roll. 1
The pilot's use of excessive brake pressure during the landing roll, which resulted in a nose over. 1
The student pilot's loss of directional control during takeoff, which resulted in a runway excursion, left main landing gear collapse, and a collision with terrain. 1
The pilot's exceedance of the airplane's critical angle of attack, resulting in an inadvertent aerodynamic stall and impact with terrain. 1
A collision with a deer during landing, which resulted in substantial damage to the left wing. 1
The fatigue failure of the oil cooler cross fitting, which resulted in engine oil starvation and a total loss of engine power. 1
The failure of the No. 3 tail rotor adapter and shaft due to a loss of torque on the retaining nut. Contributing to the accident was the lack of a requirement to inspect the tail rotor assembly for security in the helicopter manufacturer's maintenance manual and the operator's approved aircraft inspection program. 1
The pilot's failure to maintain directional control during the landing and his subsequent improper decision to attempt an aborted landing after the airplane had departed the runway. 1
The airplane owner's inadequate maintenance and servicing of the propeller gearbox, which resulted in oil starvation, failure of the gearbox in flight, and a subsequent loss of propeller thrust. Contributing to the outcome was the airplane's low altitude at the time of failure, which precluded the airplane from reaching the runway. 1
The failure of the driver of the service vehicle to yield to the taxiing airplane, which resulted in a near-collision and tail strike. 1
The loss of engine power due to fuel starvation as a result of naphthenate fuel contamination, which blocked the fuel flow through the start pump. \r 1
A loss of engine power due to fuel exhaustion for reasons that could not be determined based on available evidence and the pilot’s decision to continue the flight after realizing the remaining fuel quantity was near 0.\r 1
A loss of engine power/performance for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
The student pilot's failure to remove the tension applied to the cyclic before takeoff, which resulted in a loss of directional control and the tail rotor striking the ground. 1
The noninstrument-rated pilot's spatial disorientation and subsequent loss of airplane control while maneuvering at low altitude, over water with no visible horizon, in dark night conditions, which resulted in a collision with the water. 1
The pilot's decision to initiate the flight into known adverse weather conditions, which resulted in his spatial disorientation and loss of airplane control. 1
The pilot's failure to identify the taxiway, which resulted in a runway excursion and impact with terrain while turning off the runway at night. 1
The pilot's failure to maintain clearance with terrain during a low altitude flight. 1
The student pilot's failure to maintain pitch control during the landing, which resulted in abnormal runway contact, a ground loop, and a nose over. 1
The pilot's loss of directional control during the landing in gusting crosswind conditions resulting in a runway excursion, and the pilot's failure to attain a positive climb rate during the aborted landing and subsequent ground collision. 1
A total loss of engine power for reasons that could not be determined during a postaccident examination of the airframe and engine. 1
The pilot's exceedance of the critical angle of attack while maneuvering at low altitude, which resulted in an accelerated aerodynamic stall, spin, and impact with terrain. 1
The flight instructor's failure to ensure that her seat was properly secured before initiating the takeoff, which resulted in a subsequent loss of control. Contributing was the lack of an installed secondary seat stop. 1
The pilot's decision to perform visual flight rules flight into night instrument meteorological conditions, which resulted in loss of control due to spatial disorientation. Contributing to the accident was the pilot's self-induced pressure to complete the mission despite the weather conditions and the operator's inadequate oversight of the flight by its operational control center. 1
The pilot’s loss of directional control while departing with a gusting tailwind.\r 1
The pilots decision to hand prop the airplane's engine without securing the airplane, resulting a runaway airplane and collision with a fence. 1
The loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any mechanical anomalies that would have precluded normal operation. Contributing to the accident was the flight instructor's inadequate airspeed management during the forced landing, which led to an aerodynamic stall at low altitude. 1
The loss of engine power during cruise flight due to fuel exhaustion, which resulted from the pilot's inadequate preflight fuel planning and in-flight fuel management. 1
The pilot's improper collective application at touchdown during a practice run-on landing, which resulted in the main rotor system impacting the tailboom and the forward portion of the fuselage impacting terrain during remedial action by the flight instructor. Contributing to the accident was the flight instructor's delayed remedial action. 1
The pilot's failure to maintain directional control during the landing in a crosswind, which resulted in a runway excursion and an impact with terrain. 1
The pilot's decision to release the collective while flying at 10 feet above ground level, resulting in the rapid helicopter descent and impact with terrain. 1
The pilot's excessive descent rate while flaring during a practice autorotation with a power recovery, which resulted in an impact with terrain. 1
The student pilot's fuel mismanagement, which led to fuel starvation and a total loss of engine power during cruise flight. Contributing to the accident was his failure to follow the appropriate engine start, before takeoff, and emergency checklists. 1
The private pilot's failure to maintain directional control during the landing roll and the flight instructor's delayed remedial action, which resulted in a runway excursion, collision with an airport sign, and a nose gear collapse. 1
The pilot's loss of control due to spatial disorientation, which occurred after ascending in order to clear rising terrain and inadvertently entering the clouds. 1
The pilot's decision to land with a quartering tail wind, and failure to maintain directional control during the landing roll, which resulted in runway excursion, and collision with a tree. 1
The pilot's failure to follow checklist procedures for an engine fire during start. 1
The pilot's decision to operate with partial carburetor heat while operating in conditions conducive to the formation of carburetor ice, which resulted in a loss of engine power due to carburetor icing. 1
The pilot's failure to maintain directional control during takeoff, which resulted in the airplane drifting to the left of the runway and impacting trees. 1
The pilot's failure to maintain visual separation from the power line due to a lack of identifiable and contrasting features, which led to an inflight collision with the line while maneuvering in gray, hazy conditions. 1
The pilot's decision to maneuver at low altitude, which resulted in a collision with power lines and substantial damage to the vertical stabilizer. 1
The pilot's failure to maintain directional control during the takeoff roll on a runway contaminated with ice and snow, which resulted in a runway excursion and an impact with a snowbank. 1
The pilot's failure to maintain directional control after encountering a sudden change in wind direction during the landing roll. 1
Collapse of the nose landing gear during landing for reasons that could not be determined, because postaccident examination did not detect any anomalies consistent with a preimpact failure or malfunction. 1
A loss of engine power during cruise for reasons that could not be determined because examination of the airplane did not reveal any anomalies that would have precluded normal operation. 1
The mechanic's failure to identify and remove a plastic sheath covering a portion of the mixture control cable during an annual inspection, which prevented the proper securing of the mixture control cable and full travel of the control at the carburetor and subsequently led to the pilot's inability to properly control the mixture control lever at the carburetor and the resultant partial loss of engine power. 1
The pilot's failure to maintain directional control during the landing roll in gusty wind conditions, which resulted in runway excursion and impact with terrain. 1
The pilot/mechanic's failure to safety-wire the gascolator bale clamp, which resulted in a fuel leak and subsequent total loss of engine power. 1
The pilot's selection of an unsuitable landing area, resulting in a loss of directional control during landing, an airstrip excursion, impact with a fence and the subsequent airplane fire. 1
The pilot’s loss of control for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. \r 1
The pilot's decision to fly at low altitude, which resulted in a collision with power lines. 1
The pilot's failure to identify the runway, resulting in the airplane touching down a few feet to the right of the runway. 1
The noninstrument-rated pilot's decision to depart into instrument meteorological conditions, which resulted in a loss of control. 1
A total loss of engine power for reasons that could not be determined, as postaccident examination revealed no anomalies that would have precluded normal operation. Contributing to the accident was the non-certificated pilot's decision to maneuver at low altitude. \r 1
Loss of directional control during landing, due to nose landing gear damage sustained in the prior takeoff, resulting in a runway excursion and nose over. 1
The pilot’s inadequate compensation for wind, which resulted in the balloon landing hard and a passenger sustaining a serious injury. 1
The pilot's failure to abort the takeoff from the soft runway surface, which precluded optimal acceleration during the takeoff sequence. 1
The noninstrument-rated pilot's failure to maintain airspeed during the initial climb in dark night conditions with no visual reference, which resulted in a stall and collision with terrain. 1
The pilot's failure to maintain airplane control during takeoff roll, which resulted in a nose over.\r\n\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion, a ground loop, and a collision with an airport sign. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical anomalies that would have precluded normal operation. \r 1
The pilots’ failure to use available sources of wind information before landing and recognize cues indicating the presence of the tailwind and conduct a go-around, which resulted in their landing with a significant tailwind and a subsequent runway overrun. \r 1
The Goodyear pilot did not see and avoid the Nakajima ahead on the taxiway. 1
The pilot's inadequate compensation for the wind which resulted in a loss of directional control. 1
The student pilot's incorrect action performance by not applying sufficient pressure to the right anti-torque pedal, resulting in an uncontrollable left yaw, and ground impact. 1
The intentional low altitude maneuvering during takeoff in response to a near-miss with an airplane departing from a converging runway, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall. 1
The pilot's failure to maintain direction control during the takeoff roll, which resulted in runway excursion, collision with terrain, and nose over. 1
The partial loss of engine power for reasons that could not be determined based on the available information.\r 1
The total loss of engine power due to fuel starvation, which resulted from the pilot's improper fuel management. 1
The pilot's failure to extend the landing gear prior to touchdown resulting in a landing with the landing gear retracted and consequent substantial damage. 1
A complete loss of electrical power, which resulted from the separation of an alternator wire due to corrosion. Contributing to the accident was the failure of the emergency landing gear extension system due to a lack of hydraulic fluid, which resulted in insufficient pressure to extend the landing gear. 1
The pilot's impairment due to carbon monoxide poisoning from a known cracked engine exhaust muffler, which resulted in a loss of aircraft control. Contributing to the accident was the pilot's decision to continue flying the airplane without properly repairing the exhaust muffler. 1
The pilot's failure to maintain directional control during the landing touchdown in gusty crosswind conditions, which resulted in runway excursion, and nose gear collapse. 1
The pilot's excessive pitch up and incorrect action of selecting flaps to zero degrees, which resulted in a tail strike during a go-around in crosswind conditions. 1
The weight shift control aircraft encounter with a wake vortex from a preceding airplane, which resulted in a roll upset at an altitude too low for recovery. Contributing to the accident was the accident pilot's failure to recognize the potential for a wake vortex encounter. 1
The pilot's inability to maintain the glider's descent rate and glide path after encountering a downdraft, resulting in a collision with trees during an off airport landing. 1
The pilot's improper soft-field landing technique, which resulted in a nose landing gear collapse and a nose over. 1
The student pilot's improper pitch control during the landing flare, which resulted in a hard bounced landing. 1
The student pilot's failure to maintain pitch control during the landing flare, which resulted in a porpoise and substantial damage to the firewall. 1
The student pilot's failure to maintain a stabilized hover, resulting in a loss of control and an impact with terrain. 1
The pilot's loss of aircraft control during a low-altitude ash dispersal maneuver. Contributing to the accident was his degraded performance due to his medical conditions. 1
The pilot's exceedance of the airplane's critical angle of attack during the initial climb, which resulted in an aerodynamic stall and a collision with terrain. 1
The pilot's failure to maintain directional control during the takeoff, resulting in a runway excursion and a nose over. 1
The air traffic controller's decision to issue climb instruction to one aircraft without ensuring the required separation with another could be maintained. Contributing to the incident was the air traffic controller's failure to issue a safety alert in a timely manner.\r 1
A total loss of engine power for reasons that could not be determined because examination of the engine revealed no mechanical anomalies that would have precluded normal operation. 1
The pilot's inadequate compensation for the wind while hovering out of ground effect, which resulted in a loss of tail rotor effectiveness. 1
The pilot’s failure to activate the airplane’s alternator, which resulted in an eventual loss of electrical power to the engine’s fuel pumps, fuel starvation, and a total loss of engine power. Contributing was the pilot’s use of an incomplete checklist.\r 1
The pilot's failure to maintain a proper approach path on landing because he failed to familiarize himself with the airport's unique approach hazards and recommended procedures before the flight. Also causal was the pilot's failure to recognize the airplane's improper approach and to execute a go-around in a timely manner. 1
The pilot's decision to takeoff on the grass runway given the conditions at the time; his excessive aft control input during the takeoff roll, which resulted in the aft fuselage contacting the runway surface; and his failure to attain sufficient airspeed and exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during a turn, which resulted in an aerodynamic stall and loss of airplane control at too low of an altitude for a safe recovery. 1
A partial loss of engine power for reasons that could not be determined based on the available evidence\r 1
The failure of the No. 3 piston due to fatigue cracking, which resulted in a total loss of engine power and subsequent forced landing, during which the airplane impacted obstacles.\r 1
The pilot's failure to maintain pitch control of the airplane during the landing touchdown, which resulted in a nose over. 1
The pilot's excessive application of the brakes during the landing roll, resulting in a loss of directional control, runway excursion, and ground loop. 1
The pilot's failure to maintain airplane control during approach for landing in gusting crosswind conditions, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall. 1
The total loss of engine power due to carburetor icing, which resulted from the flight instructor's failure to use carburetor heat during the descent.\r\n\r\n \r\n\r 1
The pilot's decision to land on unsuitable terrain and incorrect brake application during the landing roll, which resulted in a nose over. 1
The unstable approach in black-hole conditions, resulting in the airplane overshooting the runway extended centerline and descending well below a safe glidepath for the runway. Contributing to the accident was the lack of monitoring by the copilot allowing the pilot to fly well below a normal glidepath. 1
The in-flight collision with one or more large birds (Bald Eagle), which resulted in a loss of airplane control. 1
The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion and substantial damage to the lower left wing spar. 1
The student pilot's incorrect pitch control input, resulting in a porpoise during landing and substantial damage to the airplane's firewall. 1
The pilot's inability to see and avoid the power lines because of trees obscuring his view. 1
The pilot's delay in recognizing that the airplane was not performing as expected and aborting the takeoff, which resulted in collision with a berm beyond the end of the runway. Contributing to the accident were the pilot's exceedance of the airplane's gross weight and the underperformance of the engine due to governor setting and magneto timing deficiencies. Contributing to the severity of the rear passenger's injuries was his decision to forego use of his shoulder harness and/or the absence of head rests. 1
A total loss of engine power for reasons that could not be determined, as the fuel state of the airplane at the time of the accident could not be verified, and postaccident examination of the engine did not provide adequate information. 1
The flight instructor’s improper decision to depart on a local instructional flight in rapidly deteriorating weather conditions, including thunderstorms and hail, which resulted in subsequent impact with terrain during a go-around. \r 1
A total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's inadequate preflight inspection. 1
The pilot's decision to land on an unlighted grass airstrip at night, resulting in landing long, a loss of directional control, and collapsed landing gear producing substantial damage to the landing gear attachment point and left wing. 1
The pilot's failure to maintain control of the helicopter yaw while operating in conditions conducive to loss of tail rotor effectiveness, resulting in an uncommanded rapid right yaw and ground impact. 1
The pilot's failure to maintain directional control during takeoff in variable wind conditions. 1
A loss of engine power for reasons that could not be determined, as postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. \r 1
The noncertificated pilot’s failure to attain a climb in the powered-parachute and its subsequent impact with a tree. \r\n\r 1
The loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation.\r\n\r 1
The pilot's inadequate compensation for the wind which resulted in a loss of directional control at touchdown and collapse of the landing gear. 1
The student pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and collision with a runway distance remaining sign. 1
The pilot's loss of helicopter control due to vortex ring state, which resulted in a hard landing. Contributing to the accident was the pilot’s decision to conduct the landing approach with a tailwind. 1
An in-flight bird strike, which resulted in wind screen damage. 1
The pilot's failure to inspect the nose landing gear (NLG), which resulted in a crack going undetected and the subsequent separation of the NLG at the weld area during landing. 1
An inflight loss of engine power due to a failure of the engine fuel pump, which resulted in a collision with trees and terrain during the subsequent autorotation. The failure of the engine fuel pump resulted from the absence of adequate grease leading to accelerated spline wear within the fuel pump. 1
The pilot's failure to avoid obstacles and maintain situational awareness while taxiing. 1
The pilot's inadequate fuel planning, which resulted in fuel exhaustion, and collision with terrain. 1
The pilot's failure to apply carburetor heat following a loss of engine power due to carburetor icing. 1
The pilot's selection of unsuitable terrain for takeoff, resulting in a runway over-run and collision with trees. 1
The student pilot's failure to maintain pitch control during the landing flare, resulting in the subsequent porpoise during landing and substantial damage to the firewall. 1
The pilot's decision to fly a normal approach and forgetting that the long line remained attached to the helicopter, which resulted in the line snagging on a ridgeline, a loss of lateral control, and a rollover. 1
The controller's miscommunication of a clearance and failure to recognize and correct the readback resulting in the flight crew initiating takeoff without a clearance.\r 1
The fatigue failure of a tail rotor blade erosion shield extension, which resulted in in-flight damage to a main rotor blade. 1
The pilot's improper fuel management, which resulted in fuel exhaustion and a total loss of engine power.\r 1
The flight instructor's inability to move the control stick after takeoff for undetermined reasons, which resulted in an exceedance of the airplane's critical angle of attack and inadvertent aerodynamic stall. The reason for the inability to move the control stick could not be determined, because postaccident examination revealed no evidence of flight control malfunctions or anomalies that would have precluded normal operation. 1
The pilot's inadvertent turn toward terrain that was higher-than-expected while trying to avoid poor visibility conditions and his subsequent attempt to clear terrain, which reduced the airspeed and led to the exceedance of the airplane's critical angle of attack and an aerodynamic stall and spin. 1
The pilot/mechanic's inadequate postmaintenance and preflight inspections, which resulted in his failure to remove the antitorque pedal lock and a subsequent loss of control during hover operations. 1
The pilot's failure to maintain a proper landing flare in gusty wind conditions, which resulted in a hard landing and substantial damage to the firewall. 1
The pilot's failure to maintain sufficient airspeed following a loss of engine power, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's inadvertent placement of the fuel selector in the "Off" position before takeoff, which resulted in fuel starvation and a total loss of engine power. 1
A loss of control while maneuvering for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or anomalies with the airplane. 1
A loss of directional control during the takeoff roll in gusting wind conditions, which resulted in a runway excursion, a nose over, and an impact with terrain. Contributing to the accident was the pilot's decision to takeoff in gusting crosswind conditions. 1
The pilot's failure to maintain directional control during the aborted landing in gusty crosswind conditions, which resulted in a runway excursion and a collision with a tree. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop and a wing strike. 1
Maintenance personnel’s improper installation and maintenance of the fuel selector valve, which resulted in a total loss of engine power due to fuel starvation. 1
The failure of the No. 5 cylinder's exhaust pipe for undetermined reasons, which resulted in a partial loss of engine power. Contributing to the accident was the pilot’s fast and long landing, which led to a runway overrun. 1
The pilot's incorrect installation of the tailwheel steering bungee, which resulted in a runway excursion and airplane nose over. 1
The flight instructor's failure to maintain directional control during an aborted landing, which resulted in a runway excursion and collision with a taxiway sign. 1
A total loss of engine power during initial climb due to a separation of the ignition plug. 1
A runway overrun for reasons that could not be determined based on the available information.\r 1
the ramp agents failure to keep his right hand at a safe distance from the underside of the moving belt. 1
Catastrophic engine failure due to a fatigue fracture of the No. 6 connecting rod cap.\r 1
A partial loss of engine power due to a crack in the No. 2 cylinder. \r 1
The pilot's failure to maintain directional control during the landing roll in gusty wind conditions, which resulted in a runway excursion and a collision with an airport sign. 1
The pilot's exceedance of the airplane's critical angle of attack while maneuvering for a forced landing; which resulted in an aerodynamic stall and loss of control. Contributing to the accident was the fatigue failure of the crankshaft for reasons that could not be determined based on the available information. 1
The pilot’s failure to maintain airplane control while performing an acrobatic maneuver and his subsequent failure to recover from an inadvertent spin due to insufficient altitude.\r 1
The total loss of engine power for reasons that could not be determined because postaccident examination revealed no evidence of an anomaly that would have precluded normal operation. Contributing to the accident was a preexisting landing gear anomaly that prevented the landing gear from completely extending after flight at high altitude in cold weather during landing. 1
The pilot's failure to maintain adequate wing clearance while taxiing, which resulted in a collision with two unoccupied airplanes. 1
The failure of the left main landing gear wheel casting due to fatigue, which resulted in a loss of directional control during the landing roll. 1
The pilot's decision to take off with a tailwind, and exceed the critical angle of attack, which resulted in an aerodynamic stall and impact with the ground. 1
The student pilot's loss of control after exceeding the airplane's critical angle-of-attack, which lead to a power-on, aerodynamic departure stall. Contributing to the accident was the flight instructor's inadequate oversight of the student pilot. 1
The pilot's failure to maintain a proper glidepath during a landing at dusk, which resulted in impact with a moving ground vehicle. Contributing to the accident was the inoperative precision approach path indicator. 1
The failure of the prerotator belt, which impeded the engine's timing belt and resulted in a loss of engine power at low altitude. 1
The student pilot's failure to achieve an adequate climb rate while turning to avoid obstacles during an aborted landing, resulting in an uncontrolled descent, collision with terrain, and a nose over. 1
The pilot's loss of airplane control during a missed approach in instrument meteorological conditions due to spatial disorientation. Contributing to the accident was the pilot's inadequate preflight and inflight weather planning which resulted the pilot's selection of an unsuitable alternate airport, and the Civil Air Patrol's inadequate flight release procedures and inadequate oversight of the flight. 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the airplane revealed no mechanical anomalies that would have contributed to the power loss. 1
The pilot's decision to drag the left main landing gear on a snow covered dry lake bed, which resulted in a loss of directional control and a nose over during an aborted landing. 1
The flight instructor’s failure to maintain awareness while parked on the ramp with the engine operating, which resulted in impact with another parked airplane. 1
The failure of the pilots of both airplanes to see and avoid each other as they converged nearly head-on, which resulted in a midair collision. Contributing to the accident was the effect of sun glare on the other pilot. 1
An inadvertent collision with birds during final approach at night. 1
The failure of the torque meter mounting bolts, which resulted in a loss of engine power to the main drive belt and rotors. 1
Fatigue cracking of a main rotor blade for reasons that could not be determined based on the available information.\r\n\r 1
The flight instructor's improper collective input during a simulated engine failure autorotation with a power recovery, which resulted in a hard, bounced landing and the main rotor blade striking the tailboom. 1
The pilot receiving instruction's failure to maintain helicopter control during the initial takeoff, which resulted in a dynamic rollover. Contributing to the accident was the flight instructor's inadequate remedial action due to his distraction by looking outside the helicopter to ensure that the area was clear. 1
The left main landing gear forward gear tube collapsed during the landing roll. 1
The pilot's failure to maintain an approach angle of descent to avoid obstacles, resulting in the airplane striking the airport perimeter fence. 1
The pilot’s failure to attain a proper flare during landing in gusting wind conditions and low-level wind shear, which resulted in a hard landing and a subsequent loss of directional control. \r 1
A total loss of engine power during initial climbout for reasons that could not be determined because postaccident examination and testing of the engine did not reveal any mechanical anomalies that would have precluded normal operation. 1
The pilot's failure to maintain altitude in cruise flight due to his diverted attention, which resulted in controlled flight into terrain. 1
The loss of aileron trim due to the lack of separation between the cannon head on the back of autopilot cannon plug and the aileron trim tab control gear. Contributing to the incident was the lack of guidance in the airplane maintenance manual to verify separation of the autopilot control head and aileron trim tab control gear before completing work on the control pedestal. 1
The pilot's failure to maintain adequate airspeed while maneuvering at low altitude in hilly terrain, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. Contributing to the accident were the pilot's inability to recognize the rising terrain due to the sun glare and the pilot's operation of the airplane in excess of its gross weight. 1
The pilot's decision to continue the high approach, resulting in excessive speed during the landing roll, a loss of directional control, runway excursion, and nose over. 1
The pilot's failure to maintain adequate terrain clearance while landing, which resulted in a collision with a snow berm, nose gear collapse, and postimpact fire. 1
The tailwheel pilot's failure to see and avoid a stationary airplane performing a run-up, which resulted in a ground collision. 1
The student pilot's improper flare which resulted in a porpoise, runway excursion, and nose over. 1
The pilot's inadequate compensation for wind during a hover-taxi and his failure to maintain helicopter control due to a loss of tail rotor effectiveness. 1
The pilots' failure to maintain control during a takeoff attempt in a high-performance airplane. Contributing to the accident were the pilots' decision to operate the airplane above its maximum gross weight and with an aft center of gravity and their lack of experience in the make and model airplane. 1
The failure of the right main landing gear assembly for reasons that could not be determined based on the available information. 1
The pilot's inadequate preflight inspection and fuel planning and his improper in-flight fuel management, which resulted in a total loss of engine power due to fuel starvation. 1
The pilot’s inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion, and his subsequent decision to circle to the north end of the airport due to a light tailwind condition instead of making a downwind landing.\r\n\r 1
The pilot's failure to maintain aircraft control while on ground standing with the engine running during high crosswind conditions which resulted in a static rollover and collision with the ground. 1
The pilot's loss of control due to spatial disorientation while operating in instrument meteorological conditions, which resulted in an exceedance of the airplane's design stress limitations, and a subsequent in-flight breakup. Contributing to the accident was the pilot's reported inflight instrumentation anomaly, the origin of which could not be determined during the investigation. \r\n\r\n \r\n\r 1
The fatigue failure of the engine fuel pipe as a result of vibration caused by a worn starter-generator front bearing support, which excited the fuel pipe and caused it to oscillate at a resonant frequency, and a subsequent loss of engine power due to fuel starvation. Contributing to the severity of passenger injuries was the improper positioning of the passengers' seat belts. 1
The pilot’s inadvertent retraction of the landing gear during the landing roll following a landing approach in gusting wind conditions.\r 1
The pilot's failure to properly configure the landing gear, which resulted in a landing with the landing gear in the retracted position. 1
The private pilot's exceedance of the airplane's critical angle-of-attack during a go-around in gusting crosswind conditions, which resulted in an aerodynamic stall and a collision with terrain short of the runway. 1
The flight crews encounter with un-forecasted freezing rain resulting in an uncontrolled descent, forced landing, and substantial damage to the airplane's firewall, and forward pressure bulkhead. 1
The pilot's inadequate compensation for a gusting crosswind during landing, which resulted in an aerodynamic stall, impact with a structure, and subsequent postimpact fire. 1
The pilot’s failure to maintain the minimum-recommended approach airspeed in icing conditions, which resulted in a loss of airplane control. \r\n\r 1
The loss of helicopter control as a result of the loss of tail rotor effectiveness. 1
The total loss of engine power due to fuel exhaustion for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
the ground crew's misjudgment of the distance between the B767 wingtip and the MD-88 tail. Contributing to the accident was the slushy condition of the ramp which limited the maneuvering space available. 1
The failure of the pilot receiving instruction to maintain directional control during the landing roll, resulting in a ground-loop. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. 1
The pilot's inadvertent landing off the left side of the snow-covered runway, resulting in a ground loop and nose over. 1
The pilot's failure to maintain adequate airspeed while turning from the base leg to final, which resulted in the wing's critical angle-of-attack being exceeded and a subsequent aerodynamic stall. 1
The pilot's failure to attain a proper touchdown point, which led to a runway excursion. 1
A rough running engine as a result of an intermittent failure of the left magneto for reasons that could not be determined, which resulted in a subsequent autorotation, impact with a sign, and rollover. \r 1
Maintenance personnel’s repeated failure to re-rig the main landing gear (MLG) in accordance with the airplane manufacturer's service manual requirements, which resulted in the collapse of the right MLG. 1
The local controller's failure to visually scan and ensure that the runway surface was not occupied by a vehicle or other aircraft before issuing a takeoff clearance to the pilot. Contributing to this incident was the relieved controller's failure to monitor and review the position, after completing the relief briefing, to ensure that nothing had been overlooked. 1
An unintentional collision with a white-tailed deer during the takeoff roll in night visual conditions. 1
The pilot’s failure to maintain airplane control during an instrument approach in night instrument meteorological conditions, which resulted in a collision with terrain. Contributing to the accident was the pilot’s lack of recent experience in night instrument meteorological conditions.\r 1
The air traffic controller's failure to ensure the runway surface area was clear of vehicles before clearing an aircraft for takeoff. Also causal was the flight crew's decision to initiate a takeoff while the Runway Status Lights (RWSL) Takeoff Hold Lights (THLs) were activated. Contributing to the incident was the lack of a standard procedure for vehicle operators to request runway clearances and resultant "hear back/read back" error between the vehicle operator and the air traffic controller. 1
The improper locking of the rear passenger door by the specialty nurse, which resulted in the door separating from the helicopter in flight. 1
The pilot's failure to maintain pitch control during the landing, resulting in a porpoise. 1
The pilot's failure to execute the published missed approach procedure in a timely manner, which resulted in collision with a light pole and subsequent impact with terrain. 1
The fatigue failure of the forward pressure bulkhead canted web that originated from stress corrosion cracking areas. Contributing to the failure were inspection procedures and intervals inadequate to identify the crack. 1
The pilot's failure to maintain the runway course during takeoff, resulting in the airplane drifting to the left and impacting a fence. A contributing factor to the accident was the pilot's diverted attention during the takeoff. 1
The installation of an improper bearing and thrust washer during engine overhaul, which resulted in failure of the connecting rods and a subsequent total loss of engine power.\r\n\r 1
The pilot's improper placement of the fuel selector handle between two tank positions, which resulted in a restricted fuel flow to the engine and the initial loss of engine power, and his improper decision to use the high-boost auxiliary fuel pump for an extended period, which resulted in an over-rich fuel mixture condition that prevented the engine from resuming normal operation. 1
The pilot's inadvertent landing on a taxiway after a reported loss of engine power in both engines, which resulted in an overrun of the paved surface. The reason for the loss of engine power could not be determined because a postaccident test run of the engines did not reveal any anomalies that would have precluded normal operation. 1
The flight instructor's delayed remedial action to prevent a stall at an altitude that was too low to recover. Contributing to the accident was the owner/non-certificated pilot's failure to maintain control of the airplane, which resulted in an accelerated aerodynamic stall. 1
The failure of the engine crankshaft near the Nos. 4 and 5 crankshaft journals due to oil starvation. The reason for the oil starvation could not be determined during postaccident examination. 1
A total loss of engine power due to fuel vapor lock. Contributing to the accident was the absence of a fuel return line. 1
A total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's inadequate oversight of the airplane's refueling and her subsequent failure to verify and monitor the fuel quantity before and during the flight. 1
The student pilot's failure to maintain directional control during the landing, which resulted in a runway excursion, and an impact with terrain. 1
The pilot's failure to maintain airplane control during takeoff, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall/spin. Contributing to the accident was the pilot's impairment due to his combined use of central nervous system depressant medications and the illicit drug marijuana, which degraded his ability to maintain control of the airplane. 1
A hard landing, which resulted in the collapse of the nose gear assembly due to an overstress fracture and separation of the right side mounting point. 1
The pilot’s failure to maintain directional control of the airplane during the landing, which resulted in a runway excursion.\r 1
The pilot's failure to maintain sufficient airspeed while maneuvering at low altitude in strong gusting winds, which resulted in exceedance of the airplane's critical angle of attack and an aerodynamic stall/spin. Contributing to the accident was the pilot's impairment due to the effects of a sedating antihistamine. 1
Improper assembly of a fuel hose, which restricted the fuel supply to the carburetor and resulted in a loss of engine power during the initial climb after takeoff. 1
The pilot's failure to set the appropriate collective friction prior to releasing the collective in flight, which resulted in decreased main rotor pitch, settling with power, and an impact with terrain. 1
The pilot's failure to maintain direction control during the landing roll, which resulted in runway excursion, and collision with a fence. 1
The noninstrument-rated pilot's decision to turn the airplane away from the lighted airport at low altitude, over water, with no visible horizon, in dark night conditions, which resulted in spatial disorientation and a loss of airplane control. 1
The airplane’s encounter with isolated severe turbulence, which resulted in substantial airframe damage. 1
A total loss of engine power due to fuel starvation as a result of the pilot's improper fuel selector positioning procedures during the flight. 1
A loss of control for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the noncertificated pilot’s lack of experience in the aircraft type.\r 1
The total loss of engine power, which resulted from the failure of the camshaft gear due to fatigue. Contributing to the accident was the owner/operator's failure to comply with the engine manufacturer's recommended overhaul interval. 1
A partial loss of engine power due to the fatigue fracture of the No. 3 cylinder head stud.\r 1
The pilot's failure to maintain directional control during an aborted landing, which resulted in a runway excursion and a collision with trees. 1
the pilot flying's failure to maintain airspeed and correct pitch attitude. Contributing to the accident was the pilot's failure to maintain appropriate thrust after disconnecting the autothrottles. Also contributing was the first officer's failure to monitor the decaying airspeed and increasing pitch. 1
The non-certificated pilot's loss of directional control while landing. 1
The failure of the student pilot to maintain pitch control while landing, which resulted in a hard landing, loss of directional control, and runway excursion. 1
The pilot’s inadequate preflight inspection, which resulted in a total loss of engine power due to fuel contamination and a subsequent off-airport landing.\r 1
The pilot's unstable approach, which resulted in excessive airspeed during the touchdown, subsequent bounced landing, collapsed nose landing gear, and a runway excursion. 1
A partial loss of engine power due to an over-temperature event, which thermally damaged the blade tips of the turbocharger wheel and resulted in a slowing or stoppage in the rotation of the turbocharger. 1
The pilot's failure to maintain adequate airspeed while operating in the airport traffic pattern, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall at a low altitude. 1
A partial loss of engine power during initial climb for undetermined reasons because examination of the engine and a successful test-run did not reveal any anomalies that would preclude normal operation. 1
The pilot's failure to maintain control of the airplane during an aborted takeoff in gusting wind conditions.\r 1
The air traffic controller's decision to clear an aircraft to land on a runway occupied by another aircraft that had previously been instructed to line up and wait. Contributing to the runway incursion was the failure of the air traffic controller to visually scan the landing surface prior to issuing a clearance to land and failure of the assisting controllers to monitor and assist the local controller with the developing situation.\r 1
The pilot's failure to maintain directional control during the landing roll. Contributing to the accident was maintenance personnel's failure to detect the worn tailwheel assembly during the airplane's annual inspection. 1
The pilot's failure to maintain directional control during takeoff in crosswind conditions, which resulted in runway excursion, impact with terrain and an airport sign, and a postimpact fire. 1
The failure of the left main landing gear wheel axle due to a fatigue crack. 1
The pilot's failure to maintain sufficient main rotor rpm, which resulted in a loss of helicopter control and a dynamic rollover. 1
The pilot's inadequate compensation for wind during the landing approach, which resulted in the balloon’s basket impacting a metal fence and a passenger sustaining serious injuries. 1
The taxiing pilot's failure to remain a safe distance from the stopped airplane while taxiing to the run-up area, resulting in a ground collision and substantial damage. 1
The inadvertent rudder input by the passenger, resulting in a runway excursion during takeoff and collision with a taxiway sign. 1
an encounter with turbulence that resulted in a serious injury to a passenger who was standing when the fasten seatbelt sign was illuminated. 1
The pilot's failure to maintain directional control during takeoff in gusty wind conditions, which resulted in a runway excursion and a nose over. 1
The pilot's improper decision to operate the high-performance aircraft despite warnings from a flight instructor that he did not have the experience to operate the aircraft that had different and more sensitive handling characteristics than the low-performance weight-shift-control aircraft that he was used to flying, which led to his improper control inputs and resulted in his loss of aircraft control and ground impact immediately after takeoff. 1
A failure of the crankshaft due to improper torque of the crankcase through bolts. \r 1
The student pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion and impact with terrain. 1
N925NN flight crew's incorrect evaluation of the clearance between the two aircraft, leading to the inadvertent collision of the winglet with the horizontal stabilizer and elevator of N784SW. 1
The in-flight failure of the engine-to-transmission drive shaft due to improper maintenance, which resulted in low main rotor rpm and a subsequent hard landing to water. 1
The pilot's misidentification of a parallel roadway for the runway and the airplane's subsequent collision with numerous objects during landing. \r\n\r\n \r\n\r\n\r\n\r 1
The pilot's improper preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. Contributing to the severity of the pilot's injuries was his failure to have a properly secured shoulder harness at the time of the accident. 1
The flight instructor's inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
A failure of the right brake for reasons that could not be determined based on the available information. Contributing to the accident was the pilot's decision to continue the flight after experiencing a braking anomaly due to his perceived need for an expedited departure, his wish to avoid a flight delay, and his perceived lack of suitable maintenance facilities for timely troubleshooting of the brake system. 1
The student pilot's failure to reduce pitch attitude during a simulated engine failure during takeoff initial climb, resulting in a high descent rate and hard landing. Contributing to the accident was the flight instructor's delayed remedial action during the simulated engine failure. 1
A total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical failures or malfunctions that would have precluded normal operation. 1
The flight instructor's overpriming of the engine during start, which resulted in a carburetor fire. Contributing to the severity of accident was the flight instructor's failure to follow the Pilot Operating Handbook's engine fire during start emergency procedures. 1
A partial loss of engine power for reasons that could not be determined because engine examination, an engine test run, and review of engine monitor data did not reveal any evidence of preimpact anomalies that would have precluded normal operation.\r 1
A vibration of the helicopter, which resulted in an autorotation to soft terrain and subsequent impact of the tail boom with the main rotor. The reason for the vibration could not be determined because postaccident examination revealed no malfunctions or anomalies that would have precluded normal operation. 1
Failure of the right main tire for reasons that could not be determined because the tire was not available for examination.\r\n\r 1
The student pilot's improper landing approach, which resulted in a hard landing and the subsequent overstress failure of the nose landing gear.\r\n\r\n \r\n\r 1
The loss of engine power while on approach for reasons that could not be determined based on the available evidence.\r 1
the flight crews' failure to consider all available runways for landing to minimize the gusty crosswind component. Contributing to the accident was the captain's reduction of the engine thrust for about 1 second at low altitude immediately after the first officer applied maximum thrust to conduct a go-around. 1
The pilot's incorrect brake application during taxi, which resulted in a nose over. 1
The pilot's failure to maintain airplane control during the aborted takeoff, which resulted in it becoming airborne momentarily and then over running the runway. 1
Failure of the truck driver to ensure that he had adequate clearance to pass under the helicopter and the failure of the loader to park in a safer area for reloading operations. 1
The pilot's failure to maintain an adequate glide path during landing, which resulted in the airplane landing short of the runway and impacting a barricade. Contributing to the accident was the airport manager's improper placement and marking of a metal barricade that encroached on the runway safety area. 1
The pilot's failure to adequately monitor the environment and to maintain sufficient altitude to clear power lines. 1
The gas generator rear bearing oil scavenge line blocked with coke, which resulted in oil overflow and a failed rear bearing due to a lack of oil lubrication. Contributing to the incident was the operator not completely performing the maintenance items and not utilizing an oil for higher temperatures. 1
The pilot’s improper landing flare in gusting wind conditions, which resulted in a hard landing and runway excursion.\r\n\r 1
An in-flight fire for reasons that could not be determined due to extensive thermal damage to the airplane. 1
A malfunction of the fuel transfer system for reasons that could not be determined based on the available information, a stuck float in the header tank sight gauge that resulted in an inaccurate fuel quantity indication, and the pilot’s inadequate monitoring of the wing tank fuel quantity during the flight, which resulted in a loss of engine power due to fuel starvation when the header tank became depleted of fuel.\r 1
The pilot’s failure to maintain directional control during the landing roll. Contributing to the accident was the pilot’s unstabilized approach.\r\n\r 1
An engine anomaly for reasons that could not be determined, which resulted in a precautionary landing in deep snow and a subsequent noseover.\r 1
A total loss of engine power for reasons that could not be determined because postaccident examinations of the engine and airframe did not reveal any preimpact mechanical malfunctions or failures that would have precluded normal operation. 1
A failure of the right fuel tank to supply fuel to the engine for reasons that could not be determined, which resulted in a total loss of engine power due to fuel starvation.\r 1
The reciprocating engine's exhaust valve being stuck in the “open” position, which resulted in a partial loss of engine power during initial climb. 1
The pilot’s improper decision to land on a snow-covered airstrip with a tundra tire-equipped airplane, which resulted in a nose-over.\r\n\r 1
The pilot's failure to maintain clearance from a communications tower guy-wire. Contributing to the accident was the pilot's decision to conduct a long distance transition flight at a low altitude. 1
A total loss of engine power due to fuel starvation as the result of a disruption in fuel flow. 1
The pilot’s failure to remove the left helicopter skid tie-down before takeoff, which resulted in dynamic roll-over.\r\n\r 1
The pilot’s failure to select the proper fuel boost pump setting for the left auxiliary fuel pump, which allowed for an excessive fuel flow to the left engine, which resulted in a total loss of engine power and airplane control during an attempted go-around.\r 1
Failure of the landing gear to extend as a result of excessive wear within the landing gear gearbox and motor, which resulted in a gear-up landing. \r 1
A total loss of engine power during climbout for reasons an examination of the engine and fuel system was not able to determine, which resulted in a forced landing on unsuitable terrain. 1
The failure of the right main landing gear uplock actuator due to corrosion.\r 1
The pilot-in-command’s delayed remedial action to arrest the right yaw after the bounced landing while operating in a flight regime conducive to the loss of tail rotor effectiveness, which resulted in a roll-over.\r 1
The pilot’s incapacitation from carbon monoxide poisoning in flight due to cracks in the exhaust muffler, which resulted in the airplane’s continued flight until it ran out of fuel and its subsequent collision with terrain.\r 1
The student pilot's failure to maintain directional control during landing in crosswind conditions. 1
The student pilot's failure to relinquish the flight controls to the flight instructor, which resulted in a collision with terrain. 1
The pilot's exceedance of the airplane’s critical angle of attack during an attempted go-around, which resulted in an aerodynamic stall. 1
A total loss of engine power during initial climb for reasons that could not be determined because examination of the wreckage revealed no mechanical malfunctions or failures that would have precluded normal operation.\r 1
The flight instructor’s failure to maintain helicopter control while demonstrating low
rotor rpm operations from a hover.\r\n\r 1
A loss of engine power and impact with trees and terrain for reasons that could not be determined based on the available information. \r 1
The pilot’s descent below the minimum descent altitude during a nonprecision approach, which resulted in a tree strike.\r\n\r 1
The pilot's failure to recognize the flight had encountered instrument meteorological conditions at night, which resulted in an unrecognized descent and collision with water. 1
The pilot's failure to maintain helicopter control while landing, which resulted in a hard landing and subsequent roll over.\r 1
The fuel truck driver’s failure to stop before impacting the helicopter’s main rotor blades.\r 1
The pilot's failure to ensure that the landing gear were down and locked before touchdown. Contributing to the accident was the pilot’s self-reported fatigue at the time of the accident. 1
The pilot's improper landing flare, which resulted in damage to the engine firewall. 1
The airplane’s encounter with unforecast icing conditions, which led to structural icing that obscured the pilot’s vision, an aerodynamic stall, and a subsequent hard landing.\r 1
The pilot's negligent maintenance of the airplane, which resulted in improper fuel management, fuel starvation, and a loss of engine power during takeoff due to a missing securing pin in the fuel selector handle, and a subsequent forced landing on unsuitable terrain. 1
The pilot’s loss of airplane control while conducting aerobatic flight maneuvers with insufficient altitude to recover.\r 1
The pilot's controlled flight into mountainous terrain while attempting to operate under visual flight rules in instrument meteorological conditions (IMC). \r\n\r 1
The student pilot’s failure to maintain proper pitch control, which resulted in a hard, bounced landing.\r\n\r 1
The pilot's loss of vision during cruise flight, which resulted in a loss of aircraft control. Contributing to the accident was the pilot's decision to fly with a known medical condition. 1
The pilot's failure to see and avoid power lines while flying at low altitude. 1
The pilot's failure to maintain directional control of the airplane during the landing roll.\r 1
The pilot’s failure to maintain airplane control during the initial climb.\r\n\r 1
The pilot’s failure to maintain an appropriate descent rate during approach, which resulted in landing short of the runway threshold. \r\n\r 1
The pilot’s failure to maintain runway alignment during landing in gusting crosswind conditions, which resulted in an off-runway landing in soft dirt and a nose-over.\r\n\r 1
The student pilot's exceedance of the airplane’s critical angle of attack during final approach, which resulted in an aerodynamic stall, and his subsequent loss of directional control after touchdown. 1
The pilot's attempted landing on the ice-covered runway, which resulted in a runway excursion and impact with terrain. Contributing to the accident was airport personnel's lack of training regarding issuance of NOTAMs 1
The pilot's improper braking during takeoff, which resulted in a nose-over.\r 1
The pilot's continued flight into known icing conditions, which resulted in structural icing and a forced landing on icy, snow-covered terrain. 1
A total loss of engine power during takeoff due to fuel starvation as a result of a failure of internal components of the fuel servo. 1
The pilot’s failure to maintain clearance from mountainous terrain.\r\n\r 1
The pilot’s failure to maintain altitude during a low pass and the subsequent impact with a snow berm, which resulted in a nosed-over. \r 1
The flight instructor’s failure to arrest the descent rate during the practice autorotation, which resulted in a hard landing.\r 1
The failure of the landing gear to extend during landing approach due to the interference between the landing gear motor's sector and worm gears. 1
The fatigue failure of the left main landing gear (MLG) actuator piston rod, which prevented the hydraulic system from producing pressure to control the MLG’s position and led to the right MLG collapsing during landing. \r 1
The pilot’s failure to maintain airplane control after takeoff, which resulted in an aerodynamic stall.\r 1
The pilot's improper decision to perform a steep turn at low altitude, which resulted in exceedance of the airplane's critical angle of attack and an aerodynamic stall. 1
Maintenance personnel’s failure to properly secure the vacuum pump, which resulted in a loss of engine oil and the subsequent total loss of engine power due to oil starvation.\r 1
The pilot’s failure to maintain the proper glidepath during landing, which resulted in the airplane landing short of the runway, the nose landing gear separating, and the airplane nosing over during a second landing. \r 1
The pilot's exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's impairment by the effects of a combination of psychoactive substances.\r 1
The pilot’s improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.\r\n\r 1
A Bombardier CRJ200 No. 2 engine failure due to the separation of a fan blade airfoil at a low cycle fatigue crack that originated at the forward fan blade pin hole attachment. The separated fan blade had previously undergone a hot form repair and both metallurgical analysis and repair records indicated that the lance/shot peen step required to restore sufficient residual stress levels to the blade material was not completed. 1
The pilot's inability to maintain directional control during takeoff in crosswind conditions on a contaminated runway, which resulted in a runway excursion.\r 1
The flight instructor's failure to prevent the engine/rotor overspeed condition during the demonstration maneuver and the excessive descent rate during the emergency landing, which resulted in a hard landing. Contributing to the engine/rotor overspeed condition was the flight instructor's failure to comply with the demonstration procedure. 1
The pilot's uncoordinated flight control inputs and subsequent inadvertent cross-control aerodynamic stall in the airport traffic pattern that resulted in a loss of control and uncontrolled descent with insufficient altitude for recovery. 1
The pilot’s loss of control while maneuvering for reasons that could not be determined based on the available information.\r\n\r 1
The total loss of engine power due to fuel starvation, which resulted from the pilot’s inadvertent positioning of the mixture control to the “fuel cutoff” position. \r 1
The pilot's failure to maintain an appropriate glidepath to the runway. 1
The pilot’s loss of control during takeoff in gusting wind conditions.\r 1
The separation of the throttle cable’s outer housing from the inner housing at the throttle linkage while at a high-power setting, which prevented the pilot from being able to control the throttle and execute a proper landing flare and resulted in a hard landing.\r\n\r 1
The flight instructor's incorrect manipulations of the twist grip throttle control during a practice autorotation, which resulted in an engine overspeed and subsequent fire. 1
The failure of the fuel selector valve in a position that restricted fuel flow to the engine, resulting in a total loss of engine power during initial climb due to fuel starvation. Also causal was the operator's failure to effectively detect and resolve the wear and progressive binding of the fuel selector valve before it failed due to excessive rotational force being applied. Contributing was the flight instructor's exceedance of the airplane's critical angle of attack during an emergency return to the airport, which resulted in an aerodynamic stall/spin. 1
The pilot’s failure to maintain directional control of the airplane during the landing roll with crosswind conditions. \r\n\r 1
The pilot's failure to detect the presence of water in the helicopter fuel system before the flight, which resulted in a total loss of engine power during cruise. Contributing to the accident was the pilot's delayed recognition of the power loss and late initiation of an autorotation, which resulted in a hard landing on the ocean. \r\n\r\n \r\n\r\n \r\n\r 1
The pilot's decision to conduct a takeoff with a tailwind on an upsloping runway in an overweight airplane, which resulted in the airplane having insufficient energy to climb out of ground effect.\r\n\r\n\r 1
The contamination of snow and ice on the left main landing gear and brake, which prevented the wheel from rolling during touchdown and resulted in a nose-over.\r 1
Maintenance personnel's improper installation and inspection of the crankshaft gear bolt during major overhaul, which resulted in the crankshaft gear disengaging from the accessory gears of the engine and a subsequent loss of power.\r 1
The pilot’s abrupt maneuver to avoid birds during short final approach, which resulted in a hard, bounced landing.\r\n\r 1
The pilot's inadvertent encounter with instrument meteorological conditions (fog) during initial climb, which resulted in a loss of control due to spatial disorientation. 1
The student pilot’s decision to place one foot on the balloon basket and one foot on the floor during the landing, which resulted in a broken ankle. \r\n\r 1
A partial loss of engine power for reasons that could not be determined due to the fragmentation of the electrical system. 1
The student pilot’s failure to maintain directional control and to maintain clearance from a snow berm during the aborted landing. \r 1
Improper installation of the circlip within the nose gear strut, which resulted in the strut overextending in the wheel well and preventing the nose landing gear from extending during landing.\r 1
The pilot’s decision to fly in in conditions conducive to structural icing and her subsequent failure to maintain airplane control during the instrument approach. 1
The flight instructor's exceedance of the critical angle of attack during a go-around, which resulted in an aerodynamic stall/spin. Contributing to the accident was the flight instructor's failure to familiarize himself with the flight characteristics of the unfamiliar airplane before conducting the flight review. 1
The pilot's continued visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain. Contributing to the accident were the pilot's inadequate preflight weather planning and his poor decision-making. 1
The pilot’s failure to maintain clearance from a hangar while taxiing at night.\r\n\r 1
The pilot's abrupt cyclic/pitch attitude control movement, which resulted in a Fenestron ground strike. 1
The failure of the pilots to apply prompt and/or correct flight control inputs to adequately recover from the intentional aerodynamic spin. 1
The pilot’s failure to properly deice the airplane before takeoff, which resulted in an aerodynamic stall during the initial climb. \r\n\r 1
The pilot's failure to maintain proper altitude resulting in a collision with water for reasons that could not be determined based on the available information. 1
The flight instructor’s incorrect control inputs while taking off with a known quartering tailwind, which resulted in a loss of directional control and runway excursion.\r\n\r 1
The pilot's failure to maintain airplane control upon entering instrument meteorological conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's personal pressure to complete the flight despite the weather conditions. 1
The pilot's failure to properly secure oil and fuel line fittings during maintenance, which resulted in an inflight engine fire, and his subsequent loss of control while maneuvering for landing. Contributing to the accident was the pilot's diverted attention due to the inflight fire. 1
The pilot's decision to take off with a gusting tailwind and his subsequent failure to maintain directional control. 1
The student pilot’s overcompensation of right rudder pedal application during the landing roll, which resulted in a loss of directional control and impact with runway signage and a fence. \r\n\r 1
A total loss of engine power due to fuel exhaustion. Contributing to the accident was the improper calibration of the fuel quantity gauge, which led the pilot to believe that there was adequate fuel onboard. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preimpact mechanical failures or malfunctions that would have precluded normal operation. \r\n\r 1
The pilot’s inadequate preflight and inflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and subsequent forced landing in a field. Contributing to the accident was the pilot’s delayed action in taking control of the airplane following the loss of engine power. \r 1
The pilot’s failure to maintain directional control while landing with a crosswind.\r\n\r 1
The pilot’s delayed reaction to the balloon’s increased rate of descent during an attempted landing, which resulted in impact with a power line.\r 1
The local controller's issuance of a landing clearance for runway 28L to the ERJ170, and the subsequent issuance of line up and wait instructions to the A320 for runway 28L, resulting in a runway incursion.\r 1
The flight instructor's failure to ensure that adequate clearance from terrain was maintained after performance of a simulated engine failure maneuver, which resulted in controlled flight into terrain. 1
The non-instrument-rated pilot's improper decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation and a loss of airplane control. 1
the catering agent's lack of situational awareness when exiting the airplane that resulted in a serious injury. 1
The flight instructor’s incorrect compensation for the gusting crosswind during the landing roll, which resulted in a loss of directional control and runway excursion.\r\n\r 1
The partial loss of left engine power during takeoff and initial climb, which led to a hard landing in gusting crosswind conditions. The reason for the loss of engine power could not be determined because postaccident examination of the left engine revealed no anomalies that would have precluded normal operation. 1
The pilot’s initiation of a left turn at a low altitude with low airspeed and a tailwind while operating near maximum gross weight, which resulted in the helicopter losing altitude, touching down on a dirt surface, and a subsequent dynamic rollover.\r\n\r 1
The student pilot’s inadvertent use of the control yoke to correct for a drift and his subsequent failure to maintain directional control during takeoff.\r\n\r 1
The loss of electrical power due to the pilot’s inadvertent selection of the engine start switches and the subsequent fuel exhaustion to the left engine as the pilot attempted to locate visual meteorological conditions. Contributing to the accident were the pilot’s failure to ensure adequate fuel reserves on board for the flight in instrument meteorological conditions and the miscommunication between the pilot and medical crewmembers. \r 1
The pilot's inadvertent encounter with instrument meteorological conditions resulting in spatial disorientation, loss of control, and subsequent impact with terrain. 1
collision with a deer during takeoff. 1
The pilot's failure to maintain the runway heading during an attempted go-around in gusting crosswind conditions, which resulted in a runway excursion. 1
The failure of maintenance personnel to ensure that the throttle and fuel metering unit AN "B" nut was secured, which resulted in a total loss of engine power in flight and a subsequent collision with trees while attempting to land after sunset. 1
The flight instructor's inadequate preflight planning and operation of the airplane outside its center of gravity envelope, which resulted in a loss of control while maneuvering. 1
The pilot’s failure to maintain directional control while landing in flat light conditions on a hard-packed snow-covered landing area. \r\n\r 1
The pilot's decision to hover-taxi out of the hangar and his subsequent failure to maintain clearance from the hangar. 1
The pilot’s improper application of the brakes, which resulted in a nose-over and substantial damage to the rudder and wings.\r 1
The pilot’s failure to maintain pitch control, which resulted in a hard landing. \r\n\r 1
The pilot’s failure to maintain directional control of the biplane during takeoff.\r\n\r 1
The failure of the engine No. 2 connecting rod bearing for reasons that could not be determined due to the extensive secondary engine damage.\r 1
A loss of airplane control during takeoff for reasons that could not be determined based on the available information. \r 1
The pilot’s failure to compensate for a loss of effective translational lift while turning from an upwind to a downwind condition at a low altitude and low airspeed, which resulted in a loss of helicopter control.\r 1
The loss of airplane control during takeoff for reasons that could not be determined based on the available information, which resulted in an aerodynamic stall and impact with terrain.\r 1
Maintenance personnel’s incorrect installation of the No. 3 cylinder’s hydraulic valve tappet plunger, which resulted in a failure of the No. 3 cylinder’s intake valve and the subsequent partial loss of engine power.\r\n \r 1
A decrease in oil pressure due to the pilot's unintentional overfilling of the engine oil sump, and the pilot's subsequent decision to perform an off-airport precautionary landing, which resulted in impact with a tree. 1
The pilot’s failure to maintain directional control during takeoff in crosswind conditions.\r\n\r 1
The pilot’s failure to maintain sufficient airspeed during the landing flare, which resulted in a hard landing and a nose-over. \r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and loss of airplane control at an altitude too low for a safe recovery. 1
The pilot's failure to maintain an appropriate glidepath to the runway and to use the vertical guidance system. 1
The pilot’s failure to maintain clearance from trees during the approach.\r 1
The pilot's inadequate compensation for gusting tailwind conditions, which resulted in a loss of airplane control during the landing flare. 1
The pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation. \r 1
The pilot’s overcorrection with the right rudder during the landing roll, which resulted in a loss of directional control and a runway excursion.\r 1
The pilot's failure to attain a positive climb rate during an attempted missed approach in night instrument meteorological conditions that were at/near approach minimums, which resulted in controlled flight into terrain. 1
The pilot's failure to properly position the fuel selector before takeoff, which resulted a total loss of engine power due to fuel starvation. 1
The student pilot’s incorrect brake application during the landing roll, which resulted in a loss of directional control.\r\n\r 1
The total loss of engine power due to the failure of the No. 5 piston, piston pin, or connecting rod assembly for reasons that could not be determined due to the severity of the post fracture damage. \r 1
The pilot's improper decision to attempt a downwind landing and his failure to maintain adequate airspeed while maneuvering during a go-around and subsequent landing attempt, which resulted in exceedance of the airplane's critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's inadequately controlled depression, which impaired his decision-making. 1
The fuel injector manufacturer's inappropriate guidance to use a 5-ampere circuit breaker in place of the required 10-ampere circuit breaker on the fuel injector circuit, which resulted in the circuit breaker opening, a loss of electrical power to the electronic fuel injectors, and a subsequent total loss of engine power. 1
The pilot's failure to maintain clearance from a parked helicopter. 1
The probable cause of the uncontained No. 1 (left) engine failure was a separated high pressure turbine 2nd stage blade that failed due to a fatigue crack that originated below the blade platform from an area of corrosion. 1
The loose fuel fitting on the combustion heater that leaked a lean fuel-air mixture into the nose baggage compartment. The mixture was most likely ignited by the combustion heater, blowing off the nose baggage compartment doors and starting an in-flight fire. 1
The pilot’s loss of directional control during the landing roll, which resulted in the runway excursion onto the rock-covered runway safety area. \r\n\r\n\r 1
The pilot's failure to maintain airplane control, which resulted in a collision with terrain. Contributing to the accident was the pilot's impairment resulting from the combination of his progressive degenerative neurologic condition and his use of alcohol. 1
The pilot’s improper preflight planning, which resulted in fuel exhaustion and the total loss of engine power. \r\n\r 1
The student pilot's improper in-flight fuel planning, which resulted in fuel exhaustion. 1
The pilot’s failure to maintain adequate clearance from terrain during a precautionary landing in whiteout conditions, which resulted in an in-flight collision with terrain. \r 1
The pilot’s improper landing flare and subsequent hard landing while demonstrating a short-field landing and the flight instructor’s delayed remedial action.\r\n\r 1
A partial loss of engine power due to carburetor icing and the subsequent forced landing on a rough/soft field. 1
The pilot’s unstabilized approach, which resulted in the biplane being low and striking trees. \r\n\r 1
A failure of the nose landing gear down lock spring which precluded normal downlock operation of the nose landing gear. The spring failure was due to the presence of too much retained austenite which led to the formation of progressive cracking and subsequent failure of the spring.\r 1
The pilot’s failure to maintain adequate airspeed during an aborted landing, which resulted in an exceedance of the airplane’s critical angle of attack and an inadvertent aerodynamic stall. Contributing to the accident was the pilot’s distraction while on final approach. \r 1
The failure of the vertical stabilizer due to fatigue. \r\n\r 1
The pilot’s failure to fly a stabilized approach and his inadequate landing flare, which resulted in a hard landing. Contributing to the accident was the pilot’s failure to ensure that the airplane was properly serviced with fuel before departing on the flight. \r 1
Failure of the left windshield due to moisture ingression into the windshield laminate, which deteriorated the strength of the windshield. \r 1
An in-flight collision with multiple birds, which resulted in separation of the right engine's fan rotor and subsequent total loss of power of the right engine. 1
The pilot's decision to initiate and continue the flight into known adverse weather conditions, which resulted spatial disorientation, a loss of airplane control, and a subsequent in-flight breakup. 1
The pilot's failure to maintain aircraft control while maneuvering in the traffic pattern. 1
The pilot's operation of the airplane at an altitude that was too low to allow for recovery from an intentional aerodynamic stall, which resulted in an impact with terrain. Contributing to the accident were the pilot's inability to recognize altitude deviations during slow flight due to the sun glare and the pilot's lack of knowledge of the stall performance characteristics of the airplane modified with vortex generators due to the lack of information from the manufacturer. \r\n\r\n \r\n\r 1
The pilot exceeded the airplane's critical angle of attack while maneuvering at low altitude, which resulted in an inadvertent aerodynamic stall and subsequent impact with terrain. 1
Undetermined due to a lack of physical evidence. 1
The flight instructor’s decision to continue to taxi the airplane to the parking area with a known brake malfunction, which resulted in a loss of directional control and subsequent impact with a parked airplane. \r\n\r 1
A total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the airframe and engine revealed no evidence of any anomalies that would have precluded normal operation.\r 1
The mechanic's failure to install a whistle slot in the engine breather tube, which resulted in a frozen tube, displacement of the crankshaft oil seal, a loss of oil, and smoke in the cockpit, which led to a forced landing. 1
The pilot's decision to take off from unsuitable terrain with a tailwind, which resulted in a nose-over. 1
The pilot’s unstabilized approach and subsequent failure to attain the proper touchdown point, which resulted in a runway overrun.\r\n\r 1
A loss of brake system fluid due to leaks in the o-rings, which resulted in asymmetrical braking and a subsequent loss of directional control during the landing roll. \r\n\r 1
A total loss of engine power for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation. 1
The pilot’s failure to maintain directional control of the airplane during the landing roll, which resulted in a runway excursion and ground loop. \r 1
The pilot’s failure to maintain lateral control while in a hover and the helicopter’s subsequent impact with a tree. 1
The loss of torque on the No. 3 connecting rod’s nuts, which resulted in the failure of the No. 3 connecting rod’s bolts and a subsequent total loss of engine power due to the operator's maintenance personnel’s improper installation of the connecting rod nuts. 1
Maintenance personnel's improper installation of the throttle linkage attachment hardware, which resulted in a partial loss of engine power when the hardware separated in flight. 1
The total loss of engine power due to fuel starvation, which resulted from debris in the fuel selector valve restricting the fuel flow to the engine and led to a forced landing on rough terrain. \r 1
The pilot's failure to maintain the proper airspeed and his exceedance of the airplane's critical angle-of-attack during a single-engine approach, which resulted in an aerodynamic stall at an altitude too low for the flight instructor to recover. 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a runway excursion.\r\n\r 1
The passenger's improper egress from the balloon basket, which resulted in a serious injury. 1
The flight instructor's decision to continue the practice autorotation in known gusting wind conditions, which resulted in a hard landing and roll over. 1
The pilot's decision to continue visual flight into an area of instrument meteorological conditions at night in rain, which resulted in his geographic disorientation and controlled flight into terrain. 1
A collapse of the nose landing gear due to wear in the landing gear extension system.\r 1
The in-flight failure of the propeller due to excessive engine vibration loads and the use of an incorrectly-sized propeller, which resulted in a fatigue crack of the leading edge strip. Contributing to the accident was the inadequate repair of the propeller following a previous crack. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the glider’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall/spin. 1
The student pilot’s overcorrection with right rudder, which resulted in a loss of directional control, and the flight instructor’s delayed remedial action.\r 1
The pilot's loss of airplane control following an encounter with low level wind shear and turbulence during final approach for landing. Contributing to the loss of control was the pilot's decision to retract the wing flaps on final approach, which resulted in a sudden loss of lift. 1
An in-flight collision with a flock of birds. 1
The pilot’s failure to correct the gyroplane’s right roll during the landing, which resulted in the exceedance of its critical angle and a subsequent roll-over. Contributing to the accident were the pilot’s focus on preventing a potential ground loop instead of a roll-over and his lack of experience in the gyroplane model.\r\n\r 1
A loss of engine power to the left engine for reasons that could not be determined due to the extensive fire and impact damage to the airplane. 1
The noncertificated pilot’s unfamiliarity with the aircraft, which resulted in a loss of control during an unintentional takeoff.\r\n\r\n\r 1
The student pilot's improper landing flare, which resulted in a porpoised landing. 1
The pilot's inadequate preflight weather planning and in-flight weather evaluation, which resulted in an encounter with a strong cold front and the pilot's subsequent loss of airplane control. 1
The student pilot’s inability to maintain pitch and bank control during the landing after the airplane was struck by a deer.\r\n\r 1
The failure of the nose landing gear to extend and lock due to the failure of the alternator and reduced battery power due to the cold ambient temperature, which prohibited the electrically-driven hydraulic pump from supplying adequate hydraulic pressure to extend the nose landing gear. The cause of the left main landing gear collapse could not be determined, as there were no postaccident anomalies or malfunctions found when the landing gear was actuated following replacement of the alternator and battery.\r 1
the flight attendant's inadvertent bump into a retractable galley tray. 1
The pilot's failure to maintain clearance from rising terrain in dark night conditions, which resulted in controlled flight into terrain. 1
The pilot’s inability to maintain directional control during the landing roll due to a flat left main landing gear tire.\r 1
The pilot’s failure to see and avoid the airplane stopped ahead of him during taxi. \r 1
A loss of control in flight for reasons that could not be determined because no anomalies consistent with a preimpact failure or malfunction were identified during the investigation. 1
A partial loss of engine power due to pre-ignition damage to the No. 2 cylinder piston and the pilot's exceedance of the airplane's critical angle of attack while maneuvering in the airport traffic pattern, which resulted in an aerodynamic stall. 1
The student pilot's delayed and improper landing flare during a practice autorotation, which resulted in the tail rotor striking terrain. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and separation of the left main landing gear.\r 1
The pilot's loss of airplane control due to spatial disorientation, which resulted in the exceedance of the airplane's critical angle of attack and an aerodynamic stall/spin. Contributing to the accident was the pilot's failure to fly a stabilized approach consistent with the published instrument approach procedure. 1
The decision of the maintenance facility mechanic to conduct maintenance without reference to the applicable manufacturer’s guidance, which resulted in the improper reassembly and subsequent failure of the engine compressor bleed valve, which in turn prevented the engine from responding to further power demand at a critical phase of flight. Contributing to the accident was the failure of the maintenance facility’s director of maintenance to ensure that the overhaul was conducted properly and that the required post-maintenance test procedures were accomplished. \r 1
The pilot’s descent below glidepath, which resulted in the airplane’s impact with power lines.\r 1
The pilot's decision to taxi the airplane from the roadway and his subsequent failure to maintain clearance from signs and a fence after a successful emergency landing following a total loss of engine power. 1
The pilot's failure to maintain main rotor speed during a low orbiting approach over a confined mountainous area. Contributing to the accident was the pilot's decision to attempt to land in an area that did not allow for a safe exit path under conditions near the limit of the helicopter’s performance capability. 1
The pilot’s loss of directional control during the aborted landing in gusting crosswind conditions, which resulted in a runway excursion.\r\n\r 1
The loss of engine oil pressure during cruise flight, which resulted in partial loss of engine power and necessitated a forced landing. The loss of oil pressure was the result of a failed engine piston, likely initiated by foreign object damage, which resulted in the pressurization of the crankcase and expulsion of the engine oil.\r 1
An inadequate 100-hour maintenance inspection that failed to detect and correct loose nuts on a single-drive dual magneto, which led to the subsequent separation of the magneto from the engine during initial climb and the total loss of engine power.\r 1
The non-instrument-rated pilot's decision to continue a night visual flight rules into instrument flight rules conditions, which resulted in spatial disorientation and a loss of airplane control. Contributing to the accident was the pilot's failure to obtain an official weather briefing. 1
Controlled flight into terrain due to pilot spatial disorientation. Contributing to the accident was pilot fatigue, mode confusion related to the status of the autopilot, and negative learning transfer due to flight guidance panel and attitude indicator differences from the pilot's previous flight experience. 1
The pilot's use of an alternate traffic pattern entry procedure, which resulted in his inability to see and avoid the other airplane, which was flying the preferred traffic pattern, and the subsequent midair collision. 1
The non-instrument rated pilot's decision to descend through an overcast layer of weather during dark night conditions, which resulted in the airplane impacting trees. 1
Partial failure of the electric system due to a battery short, which resulted in a total loss of engine power. 1
The pilot’s failure to maintain directional control on an ice- and snow-covered runway during taxi with a crosswind, which resulted in a runway excursion.\r\n\r 1
The pilot’s inadvertent application of the autopilot during short final, which resulted in an aerodynamic stall and hard landing.\r\n\r 1
The partial loss of engine power due to a loose spark plug. Contributing to the accident was the pilot's improper preflight inspection of the airplane. 1
The non-instrument-rated pilot's improper decisions to begin and to continue a flight under visual flight rules into instrument meteorological conditions, which resulted in controlled flight into terrain. 1
A partial loss of power during cruise flight for reasons that could not be determined because postaccident examination of the engines did not reveal evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation.\r 1
A partial loss of power due to missing apex seals. \r 1
The loss of engine power for reasons that could not be determined because postaccident examination and testing of the engine did not reveal any anomalies that would have precluded normal operation. 1
The pilot's failure to abort the takeoff when he was not able to maintain directional control in the strong crosswind conditions. 1
The pilot's failure to use carburetor heat while operating in conditions conducive to carburetor icing, which resulted in a loss of engine power due to carburetor icing. Also causal was the pilot's failure to maintain rotor rpm following the loss of engine power. 1
The loss of control in flight for reasons that could not be determined because of the severe impact and postcrash fire damage to the airplane and the lack of information about the airplane emergency that the pilot was experiencing. 1
The pilot's exceedance of the airplane's critical angle of attack while attempting a short-field takeoff, which resulted in an aerodynamic stall. 1
The pilot’s failure to secure the airplane before pulling the propeller through, which resulted in the airplane rolling and subsequently colliding with a parked airplane.\r 1
The pilot's failure to abort the landing when he recognized the airplane was traveling too fast, which resulted in impact with trees off the end of the runway.\r 1
The failure of the right main landing gear torque link bolt in overstress, which resulted in the collapse of the landing gear during the landing roll.\r\n\r\n\r 1
A partial loss of engine power due to fuel contamination from an undetermined source. 1
The student pilot’s improper landing flare in gusting crosswind conditions, which resulted in a hard landing. \r\n\r 1
The pilot's failure to maintain airplane control during takeoff in crosswind conditions. 1
The pilot's decision to make steep turns to the right while operating on the right fuel tank with low fuel quantity, which led to a loss of engine power due to unporting of the right fuel tank and fuel starvation. 1
The non-instrument-rated pilot's intentional visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain. Contributing to the accident was the pilot's established anti-authority attitude. 1
The incident was caused by the air traffic controller assigning the pilots a left turn instead of the required right turn after departure which placed the aircraft in an unsafe proximity with terrain and obstructions. Contributing to the incident was the air traffic controller's inadequate recovery technique during the development of the incident. 1
A fatigue crack of the crankshaft at the No. 4 main bearing journal.\r 1
The pilot’s failure to see and avoid the stationary airplane during taxi.\r\n\r 1
The pilot's loss of control shortly after takeoff due to spatial disorientation. 1
The pilot's inappropriate response to an emergency exit window opening in flight, which resulted in a loss of control, precautionary off-airport landing, and subsequent impact with trees. Contributing to the accident was the pilot's improper repair of the emergency exit window before the flight. 1
The total loss of engine power due to fuel starvation during approach, which necessitated a gear-up landing on unsuitable terrain. \r 1
The pilot’s failure to maintain clearance from the taxiway sign.\r\n\r 1
An inadvertent encounter with mountain wave turbulence. 1
The pilot’s abrupt maneuver to avoid electrical wires during the approach, which resulted in a hard landing. \r 1
The captain’s inadvertent turn onto the incorrect taxiway and subsequent entry onto an active runway without a clearance, which resulted in the runway incursion. \r 1
The student pilot’s failure to maintain directional control during landing with a gusting crosswind.\r\n\r 1
The pilot’s failure to ensure that the runway was clear of any obstacles before departure, which resulted in the airplane impacting a snowdrift.\r\n\r 1
The pilot's intentional flight of the airplane into terrain in an act of suicide. 1
A failure of the aft support cable on the left main landing ski due to an inadequately formed nicopress sleeve, which allowed the ski to rotate into a vertical position shortly after liftoff, and its unavoidable separation during the subsequent landing. 1
The pilot’s failure to extend the landing gear during the approach to land.\r\n\r 1
The pilot's abnormally steep takeoff climb followed by a loss of control and rapid descent to ground impact, for undetermined reasons. 1
The pilot's impairment by alcohol before and during the flight, which led to his improper fuel management and resulted in fuel exhaustion and a subsequent loss of engine power. 1
The pilot's failure to maintain main rotor revolutions per minute (RPM) during a pinnacle landing, which resulted in a main rotor stall condition, a loss of control, and a subsequent impact with terrain. A contributing factor was the flight instructor's failure to monitor the main rotor RPM during the pinnacle landing. 1
A total loss of engine power due to a lack of crankshaft lubrication to the No. 4 connecting rod journal. \r\n\r 1
Unknown maintenance personnel’s improper routing of electrical wires in the engine compartment, which resulted in chafing and a subsequent in-flight fire.\r 1
The pilot’s mismanagement of the available fuel, which resulted in a loss of engine power and a subsequent hard, off-airport landing and nose-over. \r\n\r 1
The in-flight encounter with wind shear and gusting wind conditions, which resulted in a bounced landing and runway excursion.\r 1
The pilot's improper in-flight fuel management and his failure to switch the fuel selector to the “both” position in accordance with the Before Landing checklist, which resulted in a loss of engine power due to fuel starvation. 1
The pilot’s inadequate compensation for crosswind conditions during the go-around, which resulted in a loss of airplane control.\r\n\r 1
The pilot's improper decision to return to the airport following a partial or complete loss of engine power during takeoff initial climb and his failure to maintain sufficient airspeed while maneuvering, which resulted in exceedance of the critical angle of attack and an aerodynamic stall. 1
The student pilot’s improper landing flare, which resulted in a bounced hard landing.\r\n\r 1
The noncertificated pilot’s failure to maintain directional control during the landing, which resulted in a runway excursion. \r\n\r 1
Improper maintenance of the fuel pressure regulator, which resulted in an excessive fuel and airbox pressure differential and subsequent loss of engine power. 1
The improper installation of the left wheel brake torque plate by maintenance personnel, which resulted in the separation of the torque plate from the axle endplate and a loss of directional control during landing.\r 1
A total loss of engine power due to internal corrosion of the fuel manifold valve. Also causal was the pilot's decision to return to the runway following the loss of engine power shortly after takeoff, and his exceedance of the airplane's critical angle of attack during the turn, which resulted in an aerodynamic stall. 1
The pilot’s failure to maintain a stabilized approach and his subsequent incorrect brake application during the landing roll, which resulted in a nose-over.\r\n\r 1
The sport pilot’s unstabilized approach with a tailwind, which resulted in touchdown short of the runway and a subsequent nose-over. \r\n\r 1
The pilot's loss of airplane control due to spatial disorientation during the initial climb after takeoff in night instrument meteorological conditions and moderate turbulence. 1
The failure of the flight instructor and the commercial pilot to maintain adequate clearance from a power line during an aerial application training flight. 1
The in-flight disconnection of the fuel injection servo throttle linkage, which resulted in a loss of engine power. 1
The amphibious float-equipped airplane's encounter with a submerged object during a water landing, which resulted in a nose-over. 1
The student pilot’s exceedance of the weight-shift-control aircraft’s critical angle of attack and the flight instructor’s delayed remedial action and failure to maintain the proper airspeed after encountering localized turbulence during approach, which resulted in an aerodynamic stall.\r\n\r 1
The pilot's decision to operate the helicopter in gusting wind and high-density altitude conditions and his positioning of the helicopter such that it resulted in a right quartering tailwind, which resulted in a loss of helicopter control due to a loss of tail rotor effectiveness. 1
The pilot's decision to fly into and land at an area of known widespread high gusting wind, which resulted in a nose-over. 1
A fracture and collapse of the main landing gear. Contributing to the accident was corrosion to the hydrasorb lug fitting.\r 1
The student pilot’s failure to adequately compensate for crosswind conditions during a go-around and the flight instructor’s delayed remedial action. \r\n\r 1
The pilot's continued visual flight rules flight into an area of mountainous terrain and instrument meteorological conditions, which resulted in controlled flight into terrain (CFIT). Contributing to the accident was the company's failure to provide the pilot with CFIT-avoidance recurrent simulator training as required by their CFIT avoidance program and the company's inadequate flight risk assessment processes, which did not account for the known weather hazards relevant to the accident route of flight. 1
The pilot's failure to maintain adequate clearance between the helicopter's skid and the firefighting bucket and suspension cable, which resulted in the cable becoming entangled on the landing skid and a subsequent loss of helicopter control. 1
The student’s incorrect use of the go-around procedure, which resulted in an aerodynamic stall, and the flight instructor’s delayed remedial action.\r\n\r 1
The improper maintenance of the carburetor, which resulted in a stuck float and a partial loss of engine power during takeoff. 1
An in-flight separation of the tip block from the tail rotor blade due to an inadequate blade repair, which resulted in a rotor imbalance sufficient to crack the gearbox attachment studs and gearbox support assembly, and inadequate postrepair test procedures, which failed to detect the inadequate adhesive bonding. 1
The loose fuel tank selector knob set screw, which prevented the fuel selector from moving to the fuel tank position for the tank with usable fuel and resulted in fuel starvation and the subsequent total loss of engine power. \r\n\r 1
The student pilot’s incorrect flap configuration during the go-around, which resulted in a hard, forced landing.\r\n\r 1
The student pilot’s failure to maintain directional control during a touch-and-go. \r\n\r 1
The pilot's incapacitation for unknown reasons, which resulted in an overflight of his destination, a subsequent loss of engine power due to fuel starvation, and collision with terrain. 1
The student pilot’s improper landing flare, which resulted in a hard landing.\r\n\r 1
The pilot's improper landing flare and inadvertent selection of the mixture control, which resulted in a hard, bounced landing during gusting crosswind wind conditions. 1
The pilot’s improper takeoff procedure, which resulted in a loss of directional control during the takeoff. \r\n\r 1
The pilot’s use of excessive speed during a right turn from the runway to the taxiway, which resulted in a loss of directional control.\r\n\r 1
The partial loss of engine power during takeoff for reasons that could not be determined based on the available information.\r 1
The noncertificated pilot's impairment from methamphetamine and alcohol use, which precluded the pilot from maintaining control of the airplane after a loss of engine power for reasons that could not be determined based on available information. \r\n\r\n \r\n\r 1
the flight crew's improper decision to conduct a circling approach contrary to the operator's standard operating procedures (SOP) and the captain's excessive descent rate and maneuvering during the approach, which led to inadvertent, uncontrolled contact with the ground. Contributing to the accident was the operator's lack of a formal safety and oversight program to assess hazards and compliance with SOPs and to monitor pilots with previous performance issues. 1
A total loss of engine power during cruise flight due to the failure of an engine piston rod for reasons that could not be determined due to extensive damage.\r 1
The pilot's decision to attempt to land while a line of rain showers with microburst activity was crossing the airport, which resulted in a loss of control during a subsequent attempted go-around. 1
The pilot’s failure to see and avoid trees during low-altitude flight. \r\n\r 1
The flight instructor's failure to maintain airplane control during landing when he inadvertently applied brake pressure to the toe brakes when the airplane touched down. 1
A total loss of engine power during a low-altitude agricultural application flight for reasons that could not be determined during detailed examinations. Contributing to the accident was the pilot’s failure to follow the airplane manufacturer's emergency procedures to recover engine power, which resulted in a forced landing.\r 1
A partial loss of engine power due to contaminants in the fuel system that decreased the fuel flow, the source of which could not be determined. 1
The pilot’s failure to maintain a flare during landing in variable, gusting wind conditions.\r\n\r 1
Failure of the left main landing gear downlock link, which resulted in a landing gear collapse during the landing roll.\r 1
An impact with terrain during final approach for reasons that could not be determined because no evidence of an in-flight failure or malfunction was observed. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation.
\r 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control when he initiated a go-around. 1
A partial failure of the helicopter's engine tachometer due to the separation of one of the magnet assemblies and engine roughness, which precipitated the pilot’s initiation of an off-airport autorotation, during which he applied improper aft cyclic flight control input, which was contrary to the Pilot’s Operating Handbook. The reason for the reported engine roughness could not be determined during postaccident examination and engine test-runs. \r\n\r 1
The pilot’s failure to maintain directional control of the airplane during the landing roll with a quartering tailwind. \r\n\r 1
The pilot's decision to maneuver the helicopter at a low altitude near trees, which resulted in collision with the trees. 1
The total loss of engine power for reasons that could not be determined because an examination of the engine and a test run did not reveal any mechanical malfunctions or failures that would have precluded normal operation.\r\n \r 1
The pilot’s improper landing flare and subsequent failure to adequately compensate for gusting wind conditions during a go-around. \r\n\r 1
The pilot's incorrect landing flare in gusting wind conditions. 1
The pilot's failure to use carburetor heat appropriately, which resulted in a total loss of engine power due to the formation of carburetor ice. 1
The pilot’s failure to see and avoid power lines during landing. \r\n\r 1
The failure of unknown personnel to properly safety an elevator control cable turnbuckle, which disconnected in flight resulting in loss of pitch control. Contributing to the accident was the inadequate design of the experimental airplane, which did not provide a mechanism for accessing the entire flight control system during routine inspections. 1
The mechanic's failure to inspect and clean the carburetor fuel inlet screen during the airplane’s annual inspection, which allowed undetected debris and dirt to obstruct the fuel supply and resulted in fuel starvation and the subsequent total loss of engine power. 1
The pilot's improper fuel planning, which resulted in a total loss of power to both engines due to fuel exhaustion. 1
The pilot’s improper landing flare, which resulted in a bounced landing, the failure of the right main landing gear wheel, and a ground loop. \r 1
The failure of the airplane owner and maintenance personnel to follow the propeller manufacturer's recommend overhaul schedule, which resulted in a fatigue fracture of the propeller blade actuating pin and a loss of thrust in flight. 1
The pilot's impairment, due to his use of a combination of psychoactive drugs and a vision deficiency in his left eye, which resulted in a failure to maintain adequate altitude during final approach to landing and subsequent collision with power lines. 1
The pilot's unstablilized approach and improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain control during a go-around. Contributing to the accident was the pilot's lack of experience in the accident airplane make and model. 1
The pilot's improper energy management during an emergency landing approach that was prompted by an engine power loss. The specific reason(s) for the power loss and the improper energy management could not be determined based on available evidence. \r\n\r\n \r\n\r 1
An in-flight collision with a bird during the approach. \r\n\r 1
The pilot’s failure to maintain directional control of the airplane during the landing roll in crosswind conditions.\r\n\r 1
The pilot's failure to identify the alternate runway, to perform a timely precautionary landing, and to maintain airplane control. Contributing to the accident was the failure of the left engine due to oil starvation for reasons that could not be determined based on the postaccident examination. 1
The pilot's failure to maintain an adequate airspeed during out-of-ground-effect maneuvering at a low airspeed with a tailwind, which resulted in a loss of helicopter control due to a loss of tail rotor effectiveness. 1
The pilot's failure to maintain airplane control following a descent into clouds. 1
A partial loss of engine power due to separation of the throttle cable. 1
The pilot’s failure to follow the manufacturer’s go-around procedure, which resulted in an aerodynamic stall. \r\n\r 1
The pilot’s failure to maintain altitude and airspeed while maneuvering at a low altitude.\r\n\r 1
The pilot’s failure to attain a proper glidepath on approach for landing in gusting wind conditions, which resulted in an off-airport landing and impact with soccer goal posts. \r\n\r 1
The pilot’s runway selection, which resulted in landing with a tailwind and an unstabilized approach and subsequent runway overrun. \r\n\r 1
The pilot’s improper landing flare and exceedance of the airplane’s critical angle of attack during landing, which resulted in an aerodynamic stall.\r\n\r 1
The pilot’s failure to maintain directional control while landing in gusting crosswind conditions.\r 1
The pilot’s loss of directional control during takeoff with a quartering tailwind, which resulted in a runway excursion and separation of the right landing gear.\r\n\r 1
The pilot's decision to land with a gusting tailwind and his subsequent failure to maintain directional control. 1
The pilot’s failure to maintain directional control during the takeoff roll with gusting wind conditions.\r\n\r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall. \r\n\r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during landing in crosswind conditions, which resulted in an aerodynamic stall. \r\n\r 1
Loss of engine power for reasons that could not be determined based on the available information.\r 1
The pilot’s unstabilized approach during the landing flare and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r\n\r 1
The pilot’s loss of helicopter control on approach to land due to a vortex ring state (settling with power) condition, which resulted in a hard landing.\r 1
The student pilot’s failure to maintain an adequate glidepath and the flight instructor’s delayed remedial action, which resulted in the glider landing short of the runway in trees.\r\n\r 1
The flight instructor's failure to maintain helicopter control while hovering, which resulted in skid contact with the ground and a dynamic roll-over. 1
The pilots' initiation of an uncoordinated right turn with the fuel selector positioned to the right main fuel tank, which had a low quantity of fuel in it and resulted in a total loss of engine power due to the unporting of the fuel and subsequent fuel starvation. 1
The flight instructor’s failure to attain an adequate climb rate during takeoff, which resulted in impact with trees.\r 1
The pilot’s failure to follow checklists to ensure the canopy was secured before takeoff.\r\n\r 1
The flight instructor's failure to maintain directional control during takeoff in gusting crosswind conditions. 1
A partial loss of engine power due to the formation of carburetor icing, which resulted from the student pilot’s failure to apply carburetor heat and the flight instructor’s delayed response in applying carburetor heat while operating in conditions conducive to carburetor icing. \r\n\r 1
The pilot’s selection of an unsuitable landing area, which resulted in the airplane impacting wheat stalks and a subsequent nose-over.\r\n\r 1
The flight instructor’s and pilot’s mismanagement of the available fuel, which resulted in exhaustion of the fuel in the selected fuel tank and a subsequent total loss of engine power. 1
An engine crankcase overpressurization and the subsequent loss of engine oil for reasons that could not be determined, which resulted in the failure of the No. 6 cylinder connecting rod due to a lack of lubrication. \r\n \r\n\r 1
the first officer's failure to attain a proper landing flare, which resulted in a tail strike. 1
The pilot’s failure to maintain a proper airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r\n\r 1
The student pilot's loss of lateral control while practicing autorotations from a hover and the flight instructor's delayed remedial action, which resulted in a bounced landing and dynamic roll-over. 1
an encounter with convective turbulence.\r 1
An in-flight collision with a goose.\r 1
A fire in the airplane's cabin, which initiated for reasons that could not be determined due to extensive thermal damage.\r 1
The pilot’s delayed application of rudder and failure to maintain directional control during takeoff.\r\n\r 1
The pilot's decision to depart into an area of degraded visual meteorological and flat light conditions, which resulted in a loss of visual references and subsequent controlled flight into terrain. \r 1
The prospective pilot’s improper landing flare and the pilot’s delayed remedial action to initiate a go-around, which resulted in a runway excursion.\r\n\r 1
The pilot's failure to maintain control of the airplane while flying at a low altitude, which resulted in the airplane exceeding the critical angle of attack and a subsequent aerodynamic stall. 1
The pilot’s failure to properly configure the airplane for landing. Contributing to the accident were the pilot’s fatigue and self-induced distractions.\r 1
The pilot’s failure to recognize the magnitude of the swell size during landing, which resulted in a tail-low hard water landing. \r\n\r 1
The pilot's loss of helicopter control during a missed approach in instrument meteorological conditions due to spatial disorientation and the cumulative effects of task saturation. 1
A total loss of engine power due to the No. 4 cylinder’s exhaust valve getting stuck and the subsequent fracturing of the valve face stem. 1
A failure in the windshield, frame, or windshield-to-frame bond, which resulted in a rapid decompression during cruise flight. \r 1
The pilot-in-command's (PIC) attempt to salvage an unstabilized visual approach, which resulted in an aerodynamic stall at low altitude. Contributing to the accident was the PIC's decision to allow an unapproved second-in-command to act as pilot flying, the PIC's inadequate and incomplete preflight planning, and the flight crew's lack of an approach briefing. Also contributing to the accident were Trans-Pacific Jets' lack of safety programs that would have enabled the company to identify and correct patterns of poor performance and procedural noncompliance and the Federal Aviation Administration's ineffective Safety Assurance System procedures, which failed to identify these company oversight deficiencies. 1
The air traffic controller not following Federal Aviation Administration directives to establish sequencing and spacing between aircraft operating to the same runway. \r 1
The pilot’s failure to see and avoid transmission wires while maneuvering at a low altitude.\r\n\r 1
The pilot’s improper landing flare and subsequent failure to maintain directional control during the landing roll in gusting crosswind conditions.\r\n\r 1
The pilot’s failure to ensure that the canopy was properly secured before takeoff, which resulted in an unstable landing flare and hard landing.\r\n\r 1
The pilot’s failure to obtain updated weather information while practicing takeoffs and landings and his subsequent failure to maintain directional control during the landing roll in gusting crosswind conditions.\r\n\r 1
The loss of yaw control due to an inadequately compressed rudder swage, which resulted from inadequate maintenance and led to the separation of the forward right rudder cable. \r\n\r 1
The pilot's failure to maintain clearance from terrain while maneuvering at a low altitude. Contributing to the accident was the pilot's mistaken entry into a canyon surrounded by steep rising terrain while at a low altitude for reasons that could not be determined. 1
The pilot’s failure to maintain directional control during the go-around with a tailwind.\r\n\r 1
The flight instructor’s inadequate in-flight fuel management, which resulted in fuel starvation and a total loss of engine power.\r\n \r 1
A tire failure for reasons that could not be determined, which resulted in a loss of directional control during takeoff. \r 1
The pilot’s failure to maintain directional control in tailwind and crosswind conditions.\r\n\r 1
A total loss of engine power during initial climb for reasons that could not be determined because the airplane sank in the ocean and was not recovered.\r 1
A total loss of engine power due to inadequate maintenance and inspection of the engine, which resulted in a fatigue crack and subsequent failure of the No. 4 cylinder.\r 1
The pilot’s failure to maintain an adequate glidepath during approach, which resulted in an impact with a semi-truck.\r\n\r 1
The sport pilot's failure to maintain airplane control during takeoff, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall. 1
Innacurate airspeed indications due to contamination of the pitot-static system with insect remains, which resulted in a high approach and landing speed and subsequent runway overrun. 1
The pilot’s loss of runway visibility during landing in rain, which resulted in the pilot’s loss of situational awareness and subsequent loss of airplane control.\r 1
The pilot’s failure to see and avoid power lines during an agricultural application flight due to distraction when reading a map.\r\n\r 1
The flight instructor's incorrect brake application during a high-speed taxi with a tailwind, which resulted in a nose-over. 1
The noninstrument-rated pilot's intentional visual flight rules flight into instrument meteorological conditions, which resulted in a loss of airplane control due to spatial disorientation. Contributing to the accident were the pilot's overreliance on his limited instrument training. 1
The total loss of engine power due to fuel starvation. 1
The student pilot’s failure to maintain directional control of the airplane while landing with a tailwind.\r\n\r 1
The pilot’s failure to maintain adequate airspeed during landing in gusting wind conditions, which resulted in a loss of directional control.\r\n\r 1
The pilot's improper in-flight fuel management, which resulted in a partial loss of engine power due to fuel starvation. 1
The pilot's failure to obtain adequate airspeed during takeoff, which resulted in an aerodynamic stall/spin. 1
The pilot's loss of control due to his diverted attention as he attempted to close the canopy that opened during initial climb. 1
The pilot's failure to maintain directional control during the landing roll. Contributing to the accident were the pilot's lack of training and experience in the accident make and model airplane.\r\n\r\n\r 1
The pilot’s unstabilized approach and improper landing flare, which resulted in a hard, porpoised landing.\r\n\r 1
The pilot’s failure to maintain lateral control while maneuvering at a low altitude.\r 1
Loss of engine power due to the installation of an improper air induction hose, which failed and prevented sufficient air intake to the turbocharger.\r 1
The pilot receiving instruction’s failure to maintain directional control during landing in gusting wind conditions.\r\n\r 1
The pilot's inaccurate takeoff performance calculations and failure to maintain directional control during an aborted takeoff. 1
The pilot's failure to attain a proper touchdown point following a loss of engine power and his inability to stop the airplane on the short, soft runway. Contributing to the accident was the inadequate maintenance of the airplane by the owner and the mechanic and the improper annual inspection by the mechanic. 1
The pilot's failure to maintain directional control during the landing roll in quartering tailwind conditions. 1
The flight instructor’s failure to review the notices to airmen related to the airport, which resulted in his landing on a closed runway and the airplane striking runway closed markers. \r\n\r 1
The pilot’s unstabilized approach after encountering wake turbulence, which resulted in a hard landing.\r 1
The pilot’s failure to conduct a thru-flight walkaround inspection, which resulted in the engine cowling remaining open and subsequently separating from the helicopter and striking the main rotor blades and vertical stabilizer during departure.\r\n\r 1
The loss of directional control while taxiing for reasons that could not be determined because postaccident examination of the airplane revealed no mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot’s failure to maintain directional control during the taxi on skis on hard-packed snow in gusting wind conditions.\r\n\r 1
The pilot's failure to ensure that the needle did not entangle with the tower's vertical lattice as he moved the helicopter rearward, which resulted in the helicopter becoming tethered to the tower and a subsequent loss of control. 1
The pilot's loss of airplane control for reasons that could not be determined due to a lack of evidence. 1
The student pilot's failure to maintain directional control during an attempted go-around. 1
The pilot’s failure to complete the landing checklist and to extend the landing gear before touchdown.\r\n\r 1
The pilot’s selection of an unsuitable takeoff area, which resulted in impact with obstacles. \r\n\r 1
The pilot's incapacitation for reasons that could not be determined, which resulted in collision with trees and terrain. 1
The pilot’s failure to maintain directional control during takeoff, which resulted in a ground loop.\r\n\r 1
The probable cause of the No. 2 (right) engine fire was an uncontained generator failure. Deformed rotating generator components and/or metal fragments radially released by the generator severed the constant speed drive-to-oil cooler return line located adjacent to the generator and caused oil to spray onto hot generator and engine case surfaces that subsequently ignited. 1
Company maintenance personnel's failure to remove a screwdriver that was left lodged in the windshield wiper area of the forward fuselage during maintenance and subsequently became dislodged on takeoff/initial climb and collided with a left propeller blade. 1
The pilot's inadvertent contact with the propeller while hand propping the engine, which resulted in a fatal injury. 1
Failure of the left main landing gear actuator assembly, which resulted in an inability to extend the left main landing gear.\r\n\r 1
A detached throttle cable support block, which resulted in the pilot’s inability to control the throttle and the subsequent stall while maneuvering for an emergency landing.\r 1
The pilot's failure to lower the landing gear before touchdown, which resulted in the gear-up landing.\r 1
The floatplane pilot's failure to avoid a buoy during takeoff. 1
The pilot’s use of excessive airspeed during the approach, which resulted in a bounced, hard landing and subsequent loss of directional control during an attempted go-around. \r\n\r 1
The student pilot’s failure to maintain pitch control during the landing flare with a tailwind, which resulted in a propeller strike. \r\n\r 1
The pilot's improper recovery from a spin. 1
The pilot's failure to maintain adequate airspeed while manually flying the airplane, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's inability control the airplane without the aid of the autopilot. 1
The student pilot’s failure to maintain clearance from other airplanes in the run-up area. \r 1
An in-flight collision with a goose during approach.\r\n\r 1
The pilot's decision to continue the flight into known adverse weather conditions, which resulted in spatial disorientation and a subsequent loss of airplane control and in-flight breakup. 1
The pilot’s in-flight fuel mismanagement and subsequent failure to maintain adequate airspeed while attempting to land on the runway, which resulted in an aerodynamic stall and a hard landing. \r 1
The pilot's decision to maneuver the airplane over mountainous terrain in high-density altitude conditions, which resulted in the airplane’s inability to maintain altitude or establish a climb. 1
The pilot’s improper adjustment of the prerotator motor, which resulted in its failure to disengage and the subsequent loss of aircraft control during takeoff.\r 1
A collapsed engine induction duct, which resulted in restricted air flow to the engine and a subsequent loss of engine power. Contributing to the accident was the operator's failure to ensure that the correct induction duct was installed.\r 1
The pilot's attempted aborted landing late in the landing sequence because she saw another airplane on the runway facing her with its propeller turning, which resulted in a hard landing, a subsequent loss of directional control, and ground loop. \r 1
The pilot's improper decision to conduct multiple visual approaches to the destination airport despite the night instrument meteorological conditions; the airplane's low fuel state at that time, which resulted in a total loss of engine power due to fuel exhaustion; and the pilot's subsequent failure to maintain adequate airspeed, which led to an aerodynamic stall and a loss of control. Contributing to the accident was the pilot's operation of the flight with a medical certification limitation that precluded him from night flying. 1
The pilot’s failure to maintain directional control during a go-around.\r\n\r 1
The student pilot’s loss of directional control.\r\n\r 1
The pilot's failure to maintain directional control while taxiing in gusting crosswind conditions. 1
The pilot’s failure to maintain clearance from a power line while conducting agricultural spray operations. \r\n\r 1
An engine power loss for reasons that could not be determined because the airplane was not recovered. 1
The pilot’s inadequate compensation for gusting crosswind conditions at night and his delayed go-around, which resulted in the airplane bouncing and impacting a fence.\r\n\r 1
The pilot's failure to maintain control of the airplane during a night visual landing approach. Contributing to the accident was the pilot's impairment due to his use of a combination of medications. 1
The pilots' decision to perform flight training maneuvers at low airspeed at an altitude that was insufficient for stall recovery. Contributing to the accident was the flight instructor's inappropriate use of non-standard stall recovery techniques. 1
The pilot's failure to shut down the engine before exiting the airplane and his failure to focus his attention on the task at hand, which led to his walking into a rotating propeller. 1
The pilot’s inadequate preflight inspection, during which he failed to ensure that there was sufficient coolant in the engine reservoir, which resulted in the engine getting too hot and the engine control module shutting down the engine.\r 1
A loss of directional control during landing for reasons that could be determined based on the available information. 1
A total loss of engine power for undetermined reasons, which resulted in a forced landing and subsequent impact with trees. \r 1
The pilot’s improper decision to land the airplane with a gusting crosswind, which resulted in a loss of airplane control. \r\n\r 1
malfunction of the parking brake electrical control valve that resulted in a sudden stop. 1
The pilot’s failure to maintain directional control in variable wind conditions. \r\n\r 1
The pilot's failure to identify and correct his construction error of a critical structural component, which resulted in a loss of airplane control during takeoff. Contributing to the accident was the pilot's impairment due to his combined use of multiple medications and illicit drugs, which led to his improper decision to attempt the flight despite evidence indicating that the error had not been addressed. 1
The pilot’s decision to land with a crosswind that exceeded the airplane’s demonstrated capability, which resulted in the airplane banking left and the wing striking the ground. \r\n\r 1
The pilot's failure to maintain airplane control during the final approach to the runway in gusting tailwind conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. 1
the jammed condition of the airplane's right elevator, which resulted from exposure to localized, dynamic wind while the airplane was parked and rendered the airplane unable to rotate during takeoff. Contributing to the accident were (1) the effect of a large structure on the gusting surface wind at the airplane's parked location, which led to turbulent gust loads on the right elevator sufficient to jam it, even though the horizontal surface wind speed was below the certification design limit and maintenance inspection criteria for the airplane, and (2) the lack of a means to enable the flight crew to detect a jammed elevator during preflight checks for the Boeing MD-83 airplane. Contributing to the survivability of the accident was the captain's timely and appropriate decision to reject the takeoff, the check airman's disciplined adherence to standard operating procedures after the captain called for the rejected takeoff, and the dimensionally compliant runway safety area where the overrun occurred. 1
The flame-out of the engine due to a mis-set fuel control unit at the time of manufacture. Contributing to the accident was the pilots’ delayed recognition that the engine had flamed out, partially due to the operator’s requirement to disable the crew awareness system.\r 1
The failure of the upper rudder hinge during flight due to severe corrosion. Contributing to the accident were the pilot’s inadequate preflight inspection and the lack of an annual inspection.\r\n\r 1
The pilot’s failure to maintain directional control during the landing roll in gusting wind conditions. \r 1
The pilot’s unstabilized approach and failure to attain the proper touchdown point while attempting to land in gusting crosswind conditions, which resulted in an attempted go-around and collision with trees and power lines. \r\n\r 1
The student pilot’s improper landing flare and subsequent failure to maintain crosswind correction during landing in crosswind conditions.\r\n\r 1
The failure of the left main landing gear to fully extend for reasons that could not be determined because postaccident examination and testing did not reveal any evidence of preimpact mechanical failures or malfunctions that would have precluded normal operation.\r\n\r 1
The pilot's failure to attain a proper touchdown point and his subsequent loss of directional control during landing for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight, which resulted in an off-airport landing. \r\n\r 1
The pilot’s failure to review the Federal Aviation Administration chart supplement before landing, which resulted in his landing on a closed runway and collision with a fence. Contributing to the accident was the airport’s failure to adequately mark the physical surface of the runway to indicate that it was permanently closed.\r\n\r 1
The pilot’s improper landing flare and his subsequent failure to maintain directional control during the landing in tailwind conditions.\r\n\r 1
The flight instructor's inadequate supervision, which resulted in a premature rotation for a no-flap takeoff and subsequent loss of airplane control during the initial climb. 1
The pilot’s failure to recognize that he was operating in the weathercock stability flight regime of loss of tail rotor effectiveness, which resulted in a loss of directional control during the execution of a right pedal turn. \r\n\r 1
The pilot’s improper compensation for crosswind conditions during the landing flare and his subsequent failure to maintain directional control during the landing.\r\n\r 1
The other pilot’s decision to land on an occupied runway and his failure to see and avoid the airplane.\r\n\r 1
The pilot’s improper landing flare, which resulted in a hard, porpoised landing and subsequent nose-over. \r\n\r 1
An in-flight fire for reasons that could not be determined based on available information. \r 1
The pilot’s failure to maintain the runway heading and the improper landing flare during landing.\r\n\r 1
Maintenance personnel’s improper securing of an unused instrument lamp socket during recent maintenance, which resulted in an electrical short of the landing gear controls and stopped the landing gear while it was transitioning to the down position and led to the landing gear collapse. 1
The pilot’s failure to maintain a proper approach path, which resulted in an impact with trees.\r\n\r 1
The pilot’s failure to maintain altitude during low-altitude maneuvers in flat light conditions.\r\n\r 1
The pilot's improper pretakeoff planning, his failure to maintain adequate airspeed, and his exceedance of the airplane's critical angle of attack during a short-field takeoff with a tailwind, which resulted in an aerodynamic stall. 1
The pilot’s delayed attempt to abort the takeoff with a tailwind, which resulted in a runway overrun.\r\n\r 1
The pilot’s improper preflight fuel planning, which resulted in fuel exhaustion and the total loss of engine power.\r 1
The pilot's loss of control after exceeding the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall. 1
The pilot's failure to maintain airplane control during an attempted go-around in gusting crosswind conditions, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall. 1
A total loss of engine power due to fuel contamination, which resulted from the pilot’s inadequate preflight inspection that did not detect water contamination. 1
The airplane's left main ski's collision with a submerged frozen sand berm. 1
The pilot’s failure to maintain directional control during the landing roll with crosswind conditions. \r\n\r 1
The pilot’s complacency during the en route phase of flight, which resulted in fuel mismanagement and a subsequent gear-up landing. \r\n\r 1
Maintenance personnel’s improper attachment of the aileron system components, which resulted in the pilot's inability to maintain flight control. \r\n\r\n\r 1
an inadvertent encounter with convective turbulence, which resulted in a serious injury to a flight attendant. 1
The pilot's improper landing flare, which resulted in a hard landing and subsequent nose-over. 1
The pilot’s unstabilized approach and failure to go around, which resulted in impact with trees.\r\n\r 1
The pilot's failure to maintain adequate airspeed during initial climb in gusty wind conditions, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall/spin. 1
The pilot’s failure to maintain separation from a fence post during taxi at night.\r\n\r 1
The pilot's inadequate fuel planning and in-flight fuel monitoring, which resulted in a total loss of engine power due to fuel exhaustion.\r\n\r 1
The partial loss of engine power for reasons that could not be determined based on the available information, which resulted in the forced landing attempt and impact with power lines.\r\n\r\n\r 1
A partial loss of engine power for reasons that could not be determined based on the available information. Contributing to the accident was the failure of the owners to obtain proper materials regarding the operation and maintenance of the engine. \r 1
The pilot's decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into mountainous terrain. 1
The pilot’s failure to maintain an adequate approach path, which resulted in a long landing and subsequent runway overrun. \r 1
A crack in the cylinder of the radial engine, which resulted in a loss of engine power and a forced landing on unsuitable terrain.\r 1
The flying pilot's excessive maneuvering of the airplane at a slow airspeed, which resulted in exceedance of the critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilots' operation of the airplane over its maximum allowable gross weight. 1
The failure of the left main landing gear on landing for reasons that could not be determined due to the extent of damage sustained during the accident. 1
The pilot's failure to maintain airplane and directional control during the landing roll and subsequent go-around in gusting wind conditions. 1
The incorrect rigging of the elevator control cables, which resulted in a reversal of elevator control inputs applied by the pilot during the takeoff, an excessive nose-high pitch, and subsequent aerodynamic stall after takeoff. Also causal was the inadequate postmaintenance inspection and the pilot's inadequate preflight inspection and before takeoff check, which failed to detect the misrigging. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during landing with a crosswind, which resulted in an aerodynamic stall and an off-runway landing.\r\n\r 1
The pilot’s unstabilized approach and failure to attain the proper touchdown point, which resulted in a runway overrun and collision with a snowbank.\r\n\r 1
The pilot receiving instruction’s overcorrection with rudder during the landing roll, which resulted in a ground loop and runway excursion. Contributing to the accident was the flight instructor’s delayed remedial action.\r 1
The pilot's failure to maintain clearance from terrain after takeoff in dark night conditions for reasons that could not be determined based on the available information. 1
A loss of engine power for reasons that could not be determined due to postcrash thermal damage to the engine accessories and the airframe. Contributing to the accident was the pilot's failure to navigate to any of the available forced landing sites within gliding distance of the airplane following the loss of engine power. 1
The pilot’s decision to take off with a known master brake cylinder leak and his subsequent failure to maintain directional control during landing. \r 1
The pilot’s unstabilized approach and subsequent failure to attain the proper touchdown point, which resulted in a runway overrun. \r\n\r 1
The pilot's failure to properly configure the airplane's flaps for takeoff, which resulted in a longer ground roll and subsequent runway excursion.\r 1
The pilot receiving instruction’s failure to maintain airplane control during a crosswind landing in high gusting winds, and the flight instructor’s failure to maintain a proper airspeed and angle of attack during the go-around, which resulted in an aerodynamic stall/spin. Contributing to the accident was the flight instructor’s decision to conduct a flight in crosswind conditions that exceeded flight school limitations. 1
A partial loss of engine power due to the reverse bending fatigue failure of the propeller hub bolts, which resulted from the bolts not fitting tightly into the propeller hub holes. Also causal was the pilot's decision to use improper bolts for this type of installation/operation. 1
The Cessna pilot's failure to maintain clearance from the Grumman during the transition to a different formation. Contributing to the accident was the stepped down configuration of the formation flight which was composed of dissimilar aircraft. 1
The pilot’s failure to maintain a proper descent rate during the approach, which resulted in a hard landing.\r\n\r 1
The pilot’s failure to maintain directional control of the airplane during the landing roll after encountering a dirt devil.\r\n\r 1
The pilot's decision to maneuver the aircraft at low altitude, towards rising terrain, which resulted in an inflight collision with trees. 1
The flight instructor's decision to fly into a valley without ensuring adequate clearance to avoid the rising terrain. \r\n\r\n\r\n\r 1
The pilot's failure to maintain control during landing, which resulted in an impact with terrain. 1
The pilot’s failure to maintain crosswind correction during landing, which resulted in the airplane cartwheeling.\r\n\r 1
The pilot's decision to continue the night, visual flight into instrument meteorological conditions, which resulted in controlled flight into terrain while on final approach. Contributing to the accident was the pilot's improper use of an electronic flight bag. 1
The student pilot’s loss of directional control during the landing roll and his subsequent inadvertent brake application, which resulted in a nose-over. \r\n\r 1
The pilot's intentional flight into an area of known convective thunderstorm activity, which resulted in an in-flight breakup. 1
The pilot's impaired decision-making due to alcohol intoxication and his improper fuel management, which resulted in a total loss of engine power due to fuel starvation. 1
The pilot’s failure to maintain directional control of the airplane during the takeoff roll.\r\n\r 1
The malfunction of the right main landing gear actuator for reasons that could not be determined because postaccident examination revealed no mechanical anomalies that would have precluded normal operation. Contributing to the accident was the improper decision to disengage the landing gear system circuit breaker before the flight, which was contrary to the manufacturer-recommended procedures. 1
The pilot’s early increased application of the collective during a simulated hovering autorotation, which resulted in a loss of rotor rpm and subsequent main rotor blade strike of the tailboom. \r 1
The pilot's diverted attention during the landing approach, which resulted in his failure to configure the landing gear and a subsequent a gear-up landing. \r 1
An encounter with a downburst during an instrument approach, which resulted in a loss of control at low altitude. Contributing to the accident was the air traffic controller's failure to solicit and disseminate pilot reports from arriving and departing aircraft in order to provide pilots with current and useful weather information near the airport. 1
The failure of the pilot receiving instruction to recover from the practice stall before the airplane entered a spin and the flight instructor's inadequate monitoring of the pilot receiving instruction and delayed remedial action to recover the airplane. 1
The pilot’s failure to maintain directional control during the landing rollout in gusting crosswind conditions. \r\n\r 1
The pilot receiving instruction's incorrect brake usage and failure to maintain directional control during the landing roll. 1
A total loss of engine power due to oil starvation, which resulted from an oil cooler leak at a fractured brazed seam.\r\n\r\n\r 1
The airport’s failure to issue a NOTAM regarding the deployment of the traffic monitoring camera system before the accident, which resulted in the airplane striking the camera system during a short-field approach and landing.\r\n\r 1
The flight instructor's inadequate supervision and lack of remedial action due to his diverted attention to a radio call, which resulted in the airplane landing short of the runway. 1
The balloon pilot’s inadequate weather planning and improper decision to depart in reported increasing variable winds with nearby thunderstorms, which resulted in a subsequent hard landing and a serious passenger injury. \r 1
The pilot's descent below the intended glidepath during the approach, which resulted in an impact with a ditch prior to the runway. 1
The partial loss of engine power due to carburetor icing. Contributing to the accident was the pilot’s failure to effectively use carburetor heat.\r 1
The flight instructor's improper recovery from a bounced landing, which resulted in a loss of airplane control. Contributing to the accident was the flight instructor's inadequate supervision of the student pilot. 1
The pilot's improper fuel management, which resulted in fuel exhaustion, a total loss of engine power, and a forced landing. 1
The pilot’s improper recovery from a slow flight configuration at low altitude, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot’s decision to operate at low altitude.\r 1
The flight instructor's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a ground loop. 1
The pilot's failure to maintain clearance from a transmission line while maneuvering at low altitude. 1
The failure of the right main landing gear to fully extend for reasons that could not be determined because postaccident examination and testing did not reveal any evidence of preimpact mechanical failures or malfunctions that would have precluded normal operation. \r\n\r\n \r\n\r 1
A partial loss of engine power due to carburetor icing, which resulted from the pilot’s failure to use carburetor heat.\r\n\r 1
The pilot's decision to perform the takeoff despite calculations showing that the distance available was inadequate, which resulted in impact with terrain. 1
The pilot’s failure to maintain directional control of the airplane during the landing roll, which resulted in an on-ground collision with two parked airplanes.\r 1
The pilot's failure to maintain a proper glide path during the landing approach and his failure to use available engine power to arrest the descent, resulting in an undershoot and collision with terrain. 1
The improper execution of an autorotation following the loss of engine power, which resulted in an uncontrolled descent into terrain. Contributing to the accident was the flight instructor's lack of remedial action during the autorotation. 1
inadvertent collision by ground service vehicle. 1
The pilot's improper landing flare, which resulted in a bounced landing, and a subsequent loss of control followed by a runway excursion. 1
The pilot's failure to perform a go-around, which resulted in a landing area overshoot, a runway overrun, a landing gear collapse, and a collision with a guard rail. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a nose over. Contributing to the accident was the pilot's limited forward visibility due to sun glare. 1
The pilot(s) failure to maintain adequate airspeed during an attempted go-around, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall. 1
an inadvertent encounter with convective turbulence while in cruise flight. 1
A reduction in electrical power, which disabled both fuel pumps and resulted in fuel starvation and a loss of engine power.\r 1
A total loss of engine power for reasons that could not be determined based on the available evidence. \r\n\r 1
The pilot's failure to see and avoid fence posts during landing, which resulted in substantial damage to the wings. 1
The student pilot's improper recovery from a bounced landing and his subsequent failure to maintain clearance from trees during an attempted go-around. 1
The student pilot's improper pitch control during the landing flare, which resulted in a porpoise and substantial damage to the engine mount. 1
The pilot's failure to maintain proper airspeed and his exceedance of the airplane's critical angle of attack during a steep low-altitude turn following a loss of engine power, which resulted in an aerodynamic stall and subsequent loss of control at too low of an altitude to recover. The reason for the loss of engine power could not be determined because postaccident examination revealed no mechanical malfunctions that would have precluded normal operation. 1
The two separations in the induction system due to improper installation and/or maintenance, which resulted in a partial loss of engine power during initial climb.\r 1
The pilot's inadequate in-flight fuel management, which resulted in fuel exhaustion and the subsequent total loss of engine power.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and damage to the left aileron and elevator. 1
Maintenance personnel’s inadequate maintenance and inspection of the airplane, which resulted in the left elevator attachment bolt backing out of the nutplate, and partial inflight separation and damage of the elevator.\r 1
The pilot's failure to attain a proper touchdown point and loss of directional control and her subsequent excessive brake application, which resulted in a nose-over. 1
The partial loss of engine power due to carburetor icing during an attempted go-around.\r 1
The pilot's loss of airplane control due to an exceedance of the airplane's critical angle of attack, which resulted in an accelerated stall and subsequent impact with a building. Contributing to the accident was the pilot's unreported physiological impairment from traumatic brain injury, which impaired his ability to safety operate the airplane. 1
The glider pilot's failure to maintain adequate pitch control while being towed and his subsequent failure to maintain adequate airspeed control after releasing from the towline, which resulted in the glider exceeding its critical angle of attack and an aerodynamic stall/spin at a low altitude. 1
The pilot's failure to maintain an appropriate pitch attitude during landing, which resulted in an initial nose wheel contact, followed by a nose gear collapse, and the airplane came to rest in a nose down position. 1
The pilot's failure to ensure that his seat was adjusted and locked, which resulted in his seat sliding aft during the takeoff roll, and the subsequent loss of directional control and runway excursion. 1
A loss of engine power due to oil starvation, which resulted from the pilot, who was not a certified airframe and powerplant mechanic, removing the vacuum pump from the engine, and his misconception that he could operate the airplane without the pump. \r 1
The pilot's failure to maintain pitch control during the landing flare, which resulted in a hard landing and substantial damage to the firewall. 1
The loss of roll control during climb for reasons that could not be determined because postaccident examination of the airframe revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a ground loop. 1
A departure flight path that consisted of several unexplained turns during the initial climbout, and terminated in a high-speed descent and ground impact. The reason(s) for the turns and descent could not be determined due to lack of definitive evidence. 1
A partial loss of engine for reasons that could not be determined during an examination of the engine. 1
The pilot's failure to maintain lateral bank control during final approach, which resulted with an impact with a tree and substantial damage to the left and right wings. 1
The pilot's failure to maintain directional control of the weight-shift control airplane during the landing in a crosswind condition, which resulted in a runway excursion, a tip over of the wing, and a collision with terrain. 1
The pilot's loss of control due to spatial disorientation shortly after takeoff, while maneuvering over water during dark night conditions. 1
The pilot's loss of helicopter control for reasons that could not be determined based on available evidence. 1
The student pilot's failure to maintain directional control during an aborted landing, which resulted in a runway excursion and a nose over in rough terrain. 1
An in-flight collision with a bird resulting in damage to a tail rotor blade, which required replacement. 1
The pilot's failure to maintain clearance from the building door, which resulted in substantial damage to the left wing. 1
A total loss of engine power for reasons that could not be determined, since postaccident examination revealed no malfunctions or anomalies that would have precluded normal operation. 1
A total loss of engine power for reasons that could not be determined because examination of the engine did not reveal evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation. 1
A partial loss of engine power due to a missing throttle cable fastener. 1
The pilot's excessive airspeed during landing, which resulted in a runway overrun, and impact with a ditch. 1
A partial loss of engine power due to a fatigue crack of the No. 2 cylinder cooling fin, which resulted in failure of the No. 2 cylinder. \r\n \r 1
The failure of both pilots to see and avoid each other while landing at a non-tower-controlled airport, which resulted in a midair collision. Contributing to the accident was the absence of radio calls from the Cessna during the traffic pattern preceding the accident. 1
the tug operators excessive speed during pushback. 1
The pilot's inadequate preflight planning, which resulted in the airplane being operated above its maximum gross weight, degraded its climb performance, and led to an aerodynamic stall during the initial climb.\r 1
The pilot's inadequate preflight inspection and fuel planning, which resulted in a loss of engine power due to fuel exhaustion. 1
The pilot's failure to maintain directional control during the landing roll in gusting wind conditions, which resulted in runway excursion and nose-over. 1
The mechanic's improper installation of the left aileron swage fitting, which resulted in an inflight loss of control. 1
The failure of the right main landing gear (MLG) down-lock mechanism, which resulted in the collapse of the landing gear. The root cause of the right MLG down-lock mechanism could not be determined because the components were not available for examination. 1
The pilot's failure to maintain airspeed following an engine anomaly during the initial climb after takeoff, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was an engine anomaly, the reason for which could not be identified during postaccident examination. 1
The failure of the alternate air valve plate hinge pin, which caused the alternate air valve plate to lodge in the fuel servo assembly, which resulted in a restriction of air to the fuel servo assembly, a loss of engine power, and an off-airport emergency landing.\r 1
A total loss of engine power after takeoff for reasons that could not be determined based on the available information. 1
The failure of the tailwheel suspension assembly during landing due to preexisting fatigue fractures in the suspension system, which resulted in a loss of directional control. 1
The pilot's failure to ensure that the brake was fully engaged and his subsequent failure to notice that his airplane was rolling forward, which resulted in it hitting another airplane. 1
A total loss of power in both engines due to fuel starvation as a result of the pilot's fuel mismanagement, and his subsequent failure to follow the emergency checklist. Contributing to the pilot's failure to follow the emergency checklist was his lack of emergency procedures training in the accident airplane. 1
The pilot's failure to maintain clearance from terrain while hover taxiing backward, resulting in the tail striking terrain. 1
The student pilot's failure to maintain pitch control resulting in a hard landing and the flight instructor's delayed action to assist the student pilot during the aborted landing, which resulted in a runway excursion, a right main and nose gear collapse, and fuselage damage. 1
The failure of the landing gear assembly snap ring, which prevented the pilot from being able to extend the landing gear and resulted in a gear-up landing. Also causal was the lack of the assembly's overhaul in accordance with the airplane maintenance manual. 1
The collapse of the left main landing gear truss due to a weld joint failure, which resulted in substantial damage to the fuselage frame structure. \r 1
The pilot’s improper landing flare, which resulted in a hard landing.\r 1
The pilot's improper fuel management, which led to fuel exhaustion and a subsequent forced landing on a road too narrow for the airplane. 1
The failure of the pilot to set the flaps to the proper takeoff setting before takeoff, resulting in an aerodynamic stall during takeoff and loss of control.\r 1
The pilot's failure to maintain a normal approach path to the runway, which resulted in the airplane colliding with a tree and a house during final approach. Contributing to the accident was the pilot's lack of recent flight experience. 1
A total loss of engine power due to air entering the fuel system for reasons that could not be determined based on available information. Contributing to the accident was the pilot’s inability to restart the engine due to the check valve assembly design. 1
The pilot’s failure to maintain clearance from power lines during an agricultural application flight while flying toward the sun.\r 1
The pilot's failure to maintain directional control after encountering a wind gust during the landing roll, which resulted in a ground loop.\r\n\r\n\r 1
PC\r\n\r\nThe unseen standing water on the runway that abruptly slowed the tailwheel equipped airplane during landing resulting in a nose-over. 1
An on-ground upset for reasons that could not be determined because postaccident examination of the helicopter revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot’s failure to maintain adequate clearance from the ground while hovering, which resulted in separation of the forward section of the right skid tube with counterweight attached, a sudden center of gravity (CG) shift outside the normal operating range, and a subsequent loss of control. 1
The pilot's decision to taxi on unsuitable terrain after landing, which resulted in an encounter with a washed out ditch. 1
The incorrect maintenance of the airplane's ventilation system which resulted in an obstruction of the elevator control system. 1
The pilot's failure to maintain clearance from the runway during a low-level aerobatic maneuver. Contributing to the accident was a high density altitude and the pilot's failure to plan/adequately compensate for high density altitude conditions. 1
A low-cycle fatigue crack in the dovetail of fan blade No. 23, which resulted in the fan blade separating in flight and impacting the fan case. This impact caused the fan blade to fracture into fragments that traveled farther than expected into the inlet, which compromised the structural integrity of the inlet and led to the in-flight separation of inlet components. A portion of the inlet struck the fuselage and created a hole, causing the cabin to depressurize. 1
The pilot's improper soft field landing technique on a soft grass airstrip, which resulted in a nose over. 1
The total loss of engine power due to a deteriorated and disconnected fuel line, which resulted in fuel starvation and a subsequent hard, off-field landing. \r 1
The pilot's decision to continue visual flight into instrument meteorological conditions, which resulted in an in-flight collision with terrain. 1
The sudden right turn on approach to landing for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 1
The pilot's improper decision to continue a descent during a night visual approach a for landing which resulted in controlled flight into terrain. Contributing to the accident was the reduced visibility and pilot's disregard of the PAPI indications that the airplane's approach path was excessively low. 1
The student pilot’s failure to attain the proper touchdown point, which resulted in a runway overrun.\r 1
Maintenance personnel’s failure to properly rig the right main landing gear locking mechanism, which resulted in a gear collapse during landing. 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and collision with terrain. 1
The pilot's failure to follow the Before Takeoff checklist and his improper use of flaps during takeoff, which degraded the airplane's climb performance and resulted in a collision with trees. 1
The student pilot's incorrect pitch control during the landing flare, which resulted in a porpoise, a loss of directional control, and a runway excursion. 1
The pilot’s failure to maintain directional control during the landing in gusting wind conditions, which resulted in a runway excursion.\r\n\r 1
The flight instructor's failure to go-around and the subsequent long landing and his failure to maintain directional control, which resulted in a runway excursion. 1
The pilot's encounter with a downdraft that exceeded the climb performance of the powered glider and resulted in his inability to maintain clearance from the trees. Contributing to the accident was the pilot's decision to fly near building clouds and rain shower activity. 1
A disconnected ground wire during initial climb, which degraded the fuel boost pumps’ performance and resulted in a total loss of engine power due to fuel starvation.\r 1
The pilot's failure to attain a proper touchdown point, which resulted in the helicopter sliding off the aft end of the transport dolly. 1
The pilot’s failure to properly secure the two aft canopy latches during the preflight inspection, which resulted in the canopy separating from the glider during the takeoff roll and substantial damage to the vertical stabilizer.\r\n\r 1
A partial loss of engine power due to the formation of carburetor ice, which resulted in reduced climb capability and impact with vegetation and terrain during takeoff. \r 1
The pilot’s improper landing flare and subsequent improper recovery from a bounced landing, which resulted in the airplane porpoising. \r\n\r 1
The pilot's improper fuel management, which resulted in fuel exhaustion, a total loss of engine power, a forced landing, and nose over. 1
The pilot's failure to maintain clearance from obstacles while landing on a coastal beach. 1
The student pilot's improper decision to land long and maintain excessive speed during the landing roll. Contributing to the accident was the student pilot's decision to maintain full flaps and aft yoke inputs at a higher speed, reducing his ability to stop the airplane on the runway. 1
The pilot's failure to maintain a controlled landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's inattention and distraction. 1
The student pilot's improper pitch technique after rotation during a short field take off, which resulted in the right wing impacting the ground and a nose gear collapse. 1
The pilot's failure to maintain directional control during landing and the unintentional right brake application, which resulted in a runway excursion and a nose over. 1
an encounter with convective turbulence. 1
The pilot's exceedance of the critical angle of attack during the landing flare, which resulted in an aerodynamic stall and a hard landing. 1
Foreign object debris in the engine's main fuel control unit, which restricted fuel flow and subsequently resulted in the loss of engine power. Contributing to the accident was the installation or addition of an extra seal during the main fuel control unit rebuild.\r 1
The pilot's failure to latch the canopy before takeoff, and his subsequent distraction and failure to maintain control while attempting to close the open canopy, which resulted in an aerodynamic stall. 1
The pilot's failure to see and avoid the tower guy-wire during an agricultural spraying operation. 1
The student pilot's distraction during taxi operations, which resulted in the airplane's left wing impacting a hangar. 1
The pilot's failure to maintain airplane control during a low-level maneuver, which resulted in an aerodynamic stall. 1
Maintenance personnel’s failure to comply with an airworthiness directive for the propeller, which resulted in a propeller hub failure due to fatigue. 1
The pilot's improper landing flare, which resulted in the airplane porpoising and the subsequent loss of directional control. 1
A total loss of engine power during descent for reasons that could not be determined because postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation.\r\n\r 1
The failure of the right rudder pedal torque tube due to fatigue, which resulted in a loss of directional control during landing. Also causal to the accident was the airplane owner/builder's failure to install a rudder torque tube reinforcement or replacement in accordance with the kit manufacturer's recommendation. 1
The facility's designation of the taxiway for use by maintenance personnel to conduct high thrust tests without appropriate safeguards in place, which led to maintenance personnel conducting high-power, run-up thrust procedures across the active taxiway and resulted in the loss of directional control of a light, single-engine airplane on the taxiway when it encountered a sudden, unexpected blast of engine thrust. 1
The pilot's failure to maintain directional control during an aborted takeoff. Contributing to the accident were the loss of engine power due to a malfunctioning alternator, which precipitated the off-field landing, and the pilot’s decision to attempt to take off from an area with high grass, which precipitated the loss of directional control. 1
The pilot's failure to maintain directional control during the landing roll in crosswind conditions, which resulted in a runway excursion and a ground loop. 1
The pilot's failure to maintain an appropriate descent rate during the base to final turn, which resulted in a forced landing, and an intentional aerodynamic stall. Contributing to the accident was the pilot's excessive braking, which resulted in a nose over and substantial damage to the empennage. 1
The pilot's improper pitch control during landing, which resulted in a bounced landing, and a nose landing gear collapse. 1
The total loss of engine power during takeoff due to a loose B-nut on the fuel flow divider input fuel line fitting, which resulted in a fuel leak and fuel starvation. \r\n\r 1
Failure of the control rotor cuff due to fatigue. \r 1
The pilot’s unstabilized approach and a subsequent runway overrun while landing on a short runway in variable wind conditions.\r\n\r 1
A partial loss of engine power due to an internal catastrophic failure of the master rod crankpin bearing. \r\n\r 1
The flight instructor’s delayed remedial action to address a low rotor rpm condition, which resulted in an excessive descent rate and a subsequent hard landing. \r 1
The pilot’s inability to maintain helicopter control after its skid got caught on the landing pad while he was maneuvering the helicopter to land on it, which resulted in a dynamic roll-over.\r\n\r 1
The pilot's improper nose down pitch attitude during touchdown resulting in a propeller strike, hard bounced landing, and nose landing gear collapse. 1
The total loss of power in both engines during cruise flight for reasons that could not be determined because the airplane was not recovered from the ocean. 1
The failure of the left landing gear leg due to fatigue, which resulted in a ground loop during landing. Contributing to the accident was the airplane builder's installation of a custom-built landing gear rather than the landing gear included with the airplane kit. 1
The loss of aircraft control for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 1
The pilot's inadequate preflight weight and balance and performance planning, which resulted in the airplane being over gross weight. Also causal were the pilot's decision not to use the entire runway for takeoff, his premature liftoff, and his failure to attain adequate airspeed, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. 1
The pilot's decision to continue the takeoff after observing a partial loss of engine power, the reason for which could not be determined because postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures. 1
The pilot's incorrect pitch control during the landing flare in gusty crosswind conditions, which resulted in a hard bounced landing and a nose over. 1
The pilot's improper fuel management, which resulted in exhaustion of the fuel in the selected fuel tank and a total loss of engine power due to fuel starvation. 1
The pilot's decision to land with a tailwind, which resulted in, landing long, a runway overrun, and impact with a berm and nose over. 1
The helicopter owner’s failure to ensure the helicopter’s airworthiness and the inadequate inspection and maintenance of the helicopter's landing gear dampers, which resulted in ground resonance during throttle application. Contributing to the damage of the helicopter were the improper actions of the pilots after encountering ground resonance.\r 1
The pilot's loss of airplane control during a forced landing in gusting crosswind conditions and the airplane’s subsequent bounce on the runway following a loss of engine power. Contributing to the accident was the loss of engine power due to carburetor icing. 1
The failure of a main landing gear leg during takeoff due to corrosion, which resulted in a nose-over during the subsequent landing on a grassy area. 1
The pilot’s failure to maintain yaw control as he slowed the helicopter during a landing approach, which resulted in the loss of helicopter control due to the loss of tail rotor effectiveness.\r\n\r 1
The pilot’s inadvertent activation of the elevator trim, which resulted in a premature takeoff and subsequent loss of airplane control and collision with trees.\r\n\r 1
The failure of both pilots to see and avoid each other during cruise flight, which resulted in a midair collision. 1
The pilot's loss of control while performing an aerobatic maneuver resulting in an inadvertent spin and collision with trees and terrain. 1
The pilot's exceedance of the airplane's critical angle of attack while maneuvering in turbulence and gusty wind conditions, which resulted in an aerodynamic stall/spin. 1
The pilot's failure to reposition the fuel selector valve to the on position prior to takeoff resulting in a loss of engine power due to fuel starvation. Contributing to the accident was the pilot's failure to properly complete the pre-takeoff checklist. 1
The loss of control upon landing for reasons that could not be determined. 1
The pilot’s failure to maintain directional control of the airplane during the landing roll with a quartering tailwind, which resulted in a ground loop and overstress failure of the left main landing gear wheel axle. \r\n\r 1
The pilot's encounter with instrument meteorological conditions, which resulted in an emergency descent through fog, a runway overrun on a wet grass runway, and a collision with a ditch and vegetation. Contributing to the accident was the pilot's failure to obtain a weather briefing prior to the flight. 1
The student pilot's improper pitch control during the landing flare, which resulted in a porpoise and substantial damage to the firewall. 1
The pilot's failure to maintain airspeed following a loss of engine power due to carburetor icing while turning from base to final at a low altitude, which resulted in the airplane's wing exceeding its critical angle of attack and a subsequent aerodynamic stall. \r\n\r 1
An electrical system malfunction for reasons that could not be determined, and the subsequent loss of engine power due to the loss of the electrical boost pumps. Also causal was the pilot's improper emergency action following the loss of engine power due to his lack of knowledge regarding the engine’s supercharger system. 1
The separated rocker arm assembly for undetermined reasons, which resulted in the partial loss of engine power and led to the landing gear collapsing during the subsequent forced landing. 1
The pilot’s decision to begin the takeoff roll with helicopter traffic on the runway, which led to a rejected takeoff. Contributing to the accident was the pilot’s improper use of the toe brakes, which he had limited experience using and resulted in a runway excursion. 1
A failure of the O-ring in the left brake master cylinder for reasons that could not be determined, which resulted in a loss of directional control during landing. 1
The overstress fracture of the left main landing (MLG) gear axle attachment bolts and the subsequent separation of the left MLG wheel, which resulted in the pilot’s inability to control the airplane.\r\n\r 1
The pilot’s failure to maintain directional control during the takeoff roll, which resulted in a loss of control and impact with terrain. Contributing to the accident were engine power surges due to the bent carburetor throttle valve lever.\r 1
The pilot's failure to maintain an adequate glide path during landing, which resulted in the airplane landing short of the airstrip, a landing gear collapse, and subsequent substantial damage to the fuselage. 1
The pilot's failure to maintain adequate clearance from ground equipment during takeoff, which resulted in an impact with irrigation pipes, a loss of directional control, an impact with a fence, and a nose over. 1
Failure of the left main landing gear attachment during the landing roll, which resulted in a left landing gear collapse, and damage to the left wing and aileron. 1
An in-flight collision with power lines. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in runway excursion, and collision with an airport sign. 1
\r\nThe pilot's spatial disorientation and loss of situational awareness during the departure turn in dark night conditions, which resulted in an in-flight collision with water. 1
The flight instructor's inability to maintain directional control during the landing roll as a result of the malfunctioning brake master cylinder. 1
A severe vibration of the helicopter that led to the crew's inability to maintain sufficient rotor rotation speed (Nr), leading to excessive main rotor blade flapping, subsequent main rotor blade contact with the tail boom, and the resultant in-flight breakup. Contributing to the severity and sustainment of the vibration, which was not predicted during development, were (1) the collective biomechanical feedback and (2) the attitude and heading reference system response, both of which occurred due to the lack of protections in the flight control laws against the sustainment and growth of adverse feedback loops when the 6-hertz airframe vibration initiated. Contributing to the crew's inability to maintain sufficient Nr in the severe vibration environment were (1) the lack of an automated safeguard in the modified one-engine-inoperative software used during flight testing to exit at a critical Nr threshold and (2) the lack of distinct and unambiguous cues for low Nr. 1
The inadequate annual inspection of the fuel system that failed to detect a deteriorated fuel line and a misrigged fuel selector, which resulted in fuel starvation and a subsequent total loss of engine power. Contributing to the accident was the mechanic’s failure to verify the work completed by the owner before endorsing the annual inspection.
\r 1
The pilot's decision to continue the landing from an unstabilized approach which resulted in a loss of control and subsequent hard landing. 1
The pilot's failure to maintain directional control during landing after encountering a boat wake, which resulted in the airplane veering left, impacting the water's surface, and subsequently becoming submerged. 1
The in-flight failure of the No. 3 cylinder connecting rod for reasons that could not be determined during postaccident examination.\r 1
Maintenance personnel's failure to ensure proper installation of a fuel tube O-ring, which resulted in an undercowl engine fire during initial climb. 1
The airplane’s encounter with low-level wind shear during takeoff, which resulted in an off-airport landing. 1
The pilot's failure to maintain clearance from power lines while maneuvering during the aerial application flight. 1
The pilot landed long and failed to stop before the end of the runway, which resulted in a runway overrun and impact with trees. Contributing to the accident was the pilot's failure to maintain a stabilized approach. 1
The flight instructor’s failure to use carburetor heat during the approach while operating in atmospheric conditions that were conducive to carburetor icing, which resulted in a loss of engine power due to carburetor icing.\r 1
The flight crew's misidentification of the desired landing runway due to excess altitude requiring an extended downwind, and failure to use all available navigation information. 1
The pilot's failure to maintain adequate airspeed after becoming distracted by the open baggage door while operating in the airport traffic pattern, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall at a low altitude. Contributing to the accident was the pilot's failure to ensure that the forward baggage compartment door was closed, latched, and properly secured during his preflight inspection. 1
The pilot's unstabilized approach and uneven braking due to insufficient runway remaining, which resulted in a loss of directional control during landing. Contributing to the accident was the bound flap jackscrew, which jammed the flaps and led to the pilot’s inability to operate the airplane normally. 1
A deer running across the runway and impacting the left side of the airplane, resulting in a loss of directional control, a runway excursion, and a ground loop. 1
A total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot's failure to maintain situational awareness while taxiing, which resulted in an impact with a stationary fuel truck. 1
The fatigue failure of a bulkhead-skin joint that supported the main landing gear leg, which resulted in the collapse of the left main landing gear. Contributing to the failure were the non-original structural configuration of the 60-year-old airplane and the relative inaccessibility for inspection or cleaning of the structure in the region of the fatigue failure. 1
The student pilot's failure to maintain directional control on landing. Contributing to the accident was the pilot's lack of flight experience. 1
The pilot's failure to maintain airplane control after a total loss of engine power due to carburetor icing, which accumulated because the carburetor heat was not functioning. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and a ground loop. 1
A partial loss of engine power for reasons that could not be determined and the pilot’s failure to maintain directional control during the aborted takeoff.\r 1
While at a low altitude, the pilot's decision to do an abrupt descending right downwind turn which resulted in flying through his own vortices and an impact with terrain. 1
The pilot's incorrect pitch control during the landing flare, which resulted in a porpoise and hard landing. 1
The emergency response team's failure to ensure that the system operator was secured to the helicopter, which resulted in his fall during the recurrent rescue hoist training operation. 1
Company maintenance personnel's inappropriate removal without replacement of the safety wires on the collective lever pin screws during a recent maintenance inspection, which resulted in the screws backing out and led to a loss of collective control in flight. 1
A total loss of engine power during descent for reasons that could not be determined because impact damage precluded a complete examination of the fuel servo. 1
The pilot's failure to move the fuel selectors to the “main” position in accordance with the Before Landing checklist, which resulted in fuel starvation and the total loss of power of both engines. 1
The partial loss of engine power due an unsecured throttle cable. Contributing to the unsecured throttle cable was the missing bolt and associated safety wire; the reason for the missing bolt and safety wire could not be determined. 1
The pilot's failure to properly set the throttle and secure the airplane before hand-propping the engine for startup. 1
The pilot's improper landing flare, which resulted in a hard landing and subsequent landing gear separation and collapse. 1
The pilot's failure to maintain directional control of the powered glider during the landing roll. 1
An evasive maneuver during the landing flare to avoid deer on the runway, which resulted in a collision with trees and terrain during a go-around. Contributing to the accident was the lack of an airport perimeter fence. 1
The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall and impact with terrain. 1
The pilot's delayed action to perform an aborted landing, which resulted in a nose over and substantial damage to the firewall, fuselage, and empennage. 1
Carburetor contamination following exposure to water in the fuel, which resulted in a carburetor malfunction and a partial loss of engine power. Contributing to the accident was the pilot's loss of airplane control that resulted in a stall. 1
The pilot's loss of airplane control during an instrument approach. Contributing to the accident was the pilot's lack of instrument flight proficiency. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and a landing gear collapse. 1
The student pilot's failure to retract the flaps during a go-around in high density altitude conditions, resulting in the airplane's inability to climb and a subsequent collision with terrain and nose over. 1
The pilot's exceedance of the airplane's critical angle-of-attack during approach, resulting in an inadvertent stall and hard landing. 1
A total loss of engine power during approach for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.\r 1
An inflight fire in the floor area near the main bus tie circuit breaker panel that resulted from chafing between an electrical wire and a hydraulic line and/or airplane structure. 1
The uncertificated pilot’s failure to maintain control of the powered parachute during takeoff. 1
The pilot's failure to maintain adequate clearance from power lines. Contributing to the accident was the pilot's failure to circle over the field to identify hazards before beginning the aerial application. 1
The pilot's failure to maintain a safe taxi distance from a large turbine-powered airplane, resulting in an encounter of the turbine-powered airplane's jet blast while taxiing. 1
The pilot's incorrect balked landing procedure, which resulted in an uncontrolled descent, hard landing, a runway excursion, and nose gear collapse. 1
The pilot and ground crew's failure to visually inspect the helicopter's skids before takeoff, which resulted in a water hose becoming entangled on the right skid, a loss of control, an impact with terrain, and a post-crash fire. 1
The pilot's failure to maintain clearance from terrain due to his distraction by the navigation system. 1
The pilot's failure to maintain airplane control on takeoff, which resulted in his remedial action to induce an aerodynamic stall and the subsequent impact with terrain. 1
The loosening and separation of the throttle linkage nut, which resulted in a loss of throttle control and subsequent hard landing after autorotation.\r\n\r\n \r\n\r 1
The pilot's pattern of poor decision-making that led to the initial launch, continued flight in fog and above clouds, and descent near or through clouds that decreased the pilot's ability to see and avoid obstacles. Contributing to the accident were (1) the pilot's impairing medical conditions and medications and (2) the Federal Aviation Administration's policy to not require a medical certificate for commercial balloon pilots. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion, a nose gear collapse, and impact with terrain. 1
The pilot's failure to maintain pitch control during an autorotation, which resulted in abnormal ground contact and main rotor contact with the tail boom. Contributing to the accident was the low fuel level which resulted in fuel starvation and a loss of engine power during the right turn to final. 1
A leak in the gascolator due to degraded rubber gaskets, which allowed air to enter the fuel system and resulted in fuel starvation and a total loss of engine power during takeoff. 1
The pilot’s premature rotation during takeoff, which resulted in an aerodynamic stall and a hard landing.\r 1
The failure of the No. 4 cylinder exhaust valve, which resulted in a partial loss of engine power and a forced landing. Contributing to the valve failure and loss of engine power was the extended time since the last overhaul.\r 1
The airplane's hard landing during an aborted takeoff, following an encounter with a downdraft during takeoff initial climb from a remote mountain airstrip, resulting in an uncontrolled descent, attempt to land on the runway remaining, and subsequent nose over. 1
The pilot's failure to maintain adequate airspeed during the initial climb after taking off from a wet runway and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. 1
The pilot's loss of control during an aborted landing. Contributing to the accident was the pilot's failure to extend the landing gear before touchdown. 1
The student pilot's failure to maintain pitch control during the landing flare in gusty crosswind conditions, which resulted in a hard landing/abnormal runway contact, a partial nose wheel collapse and substantial damage to the firewall. 1
The pilot's failure to attain adequate airspeed to climb and her exceedance of the airplane's critical angle-of-attack during takeoff initial climb at night, which resulted in an aerodynamic stall at low altitude. 1
The pilot's diverted attention inside the cockpit and failure to maintain the airplane's altitude while maneuvering at a low altitude, resulting in an impact with terrain. 1
The student pilot's improper approach descent rate and landing flare attitude, which resulted in a hard landing and collapse of the nose landing gear. 1
The pilot's failure to maintain aircraft control during takeoff on an uneven runway surface, which resulted in it becoming airborne prematurely, an aerodynamic stall, and impact with terrain. 1
The pilot’s loss of airplane control during the initial climb. 1
A collision with a bush during landing. 1
The pilot's delay in recovering from an aerobatic maneuver resulting in collision with terrain. 1
The pilot's failure to maintain airplane control during an en route climb near convective activity, which resulted in an aerodynamic stall, an uncontrolled descent, and a subsequent in-flight breakup due to an exceedance of the airplane's design load limitations. 1
The pilot’s failure to maintain clearance from a wire during an agricultural flight.\r\n\r 1
The pilot's decision to land the fully loaded parachutist drop airplane on a wet grass runway that had insufficient length for the landing in high temperature conditions, which resulted in a runway overrun, when a more suitable longer runway was available at a nearby airport. 1
The pilot’s decision to fly into known thunderstorms, which resulted in an in-flight breakup. \r 1
Improper installation of a fuel line by unknown personnel, which resulted in a total loss of engine power during initial climb due to fuel starvation. 1
The pilot's failure to replace the left fuel cap following the preflight inspection, which resulted in fuel exhaustion, a loss of engine power, an emergency landing, and impact with terrain. 1
The pilot's failure to maintain directional control during takeoff after multiple climb attempts at insufficient airspeed, which resulted in a runway excursion, a landing gear collapse, and a collision with a ditch. 1
A partial loss of engine power due to carburetor ice. 1
The pilot's inadequate visual lookout, which resulted in a wire strike. 1
The failure of both pilots to maintain an adequate visual lookout, which resulted in a midair collision. Also causal was the other pilot's use of two sedating antihistamines and two impairing medication and the effect of sun glare on his visual lookout, which likely led to his inability to successfully see and avoid the other airplane. 1
A total loss of engine power due to the separation of a flywheel magnet, which impacted the attachment bracket for the primary and secondary ignition and disrupted the timing of the ignition system, rendering it inoperative. \r\n\r 1
The total loss of engine power due to maintenance personnel’s improper setting of the aneroid adjustment.\r 1
The pilot's failure to maintain control during takeoff initial climb for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
The overtravel of the main landing gear (MLG) actuator, which resulted in the MLG partially collapsing upon landing. The reasons for the overtravel of the MLG actuator could not be determined due to the unavailability of the wreckage. 1
The pilot's failure to maintain directional control during takeoff in a high density altitude condition, which resulted in a runway excursion and impact with a tree. 1
The pilot’s failure to maintain an adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and subsequent spin. Also causal to the accident was the pilot’s failure to follow prescribed spin recovery procedures, which resulted in increased airspeed and airflow and the subsequent overstress separation of the right horizontal stabilizer. Contributing to the accident was the pilot’s inadequate preflight weight and balance calculations, which resulted in the center of gravity being aft of the limit.\r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack on short final approach, which resulted in an inadvertent aerodynamic stall and subsequent loss of control. Contributing to the accident was the pilot’s distraction with other traffic in the area. \r 1
The pilot's loss of airplane control during a practice stall maneuver, which resulted in a spin that continued to ground impact. 1
The partial loss of engine power due to carburetor icing.\r\n\r 1
The pilot's failure to maintain an appropriate descent rate during landing, which resulted in a hard landing, followed by a loss of directional control, runway excursion, and an impact with a security fence and vehicles during the subsequent attempt to abort the landing. 1
The pilot's failure to properly secure the right side of the canopy before takeoff, and an in-flight collision with trees while maneuvering with an open canopy. Contributing to the pilot's failure to properly secure the canopy was the lack of a visual indication that each side of the canopy was properly secured. 1
The pilot's failure to maintain the runway heading, which resulted in the airplane not being aligned with the runway and a subsequent runway excursion. 1
A malfunction of the electrical system, which resulted in an electrical fire in the right wing root of the airplane, which compromised the fuel system and resulted in ignition of fuel. Contributing to the accident was the routing of the electrical wiring near fuel system components. Contributing to the severity of the pilot's injuries was his failure to utilize the available fire-retardant suit. 1
The loss of engine power for undetermined reasons due to the pilot not making the airplane or engine available for examination, which resulted in a forced landing and an impact with terrain. 1
The airplane’s hydroplaning during the landing roll, which resulted in a runway excursion. Contributing to the accident was the pilot’s continuation of an unstabilized approach, his decision to land in heavy rain conditions, and his improper use of the main and emergency brake systems. Also contributing was the air traffic controller’s failure to disseminate current airport weather conditions to the flight crew in a timely manner.\r 1
The pilot's failure to maintain directional control during landing, and subsequent wing tip strike, which resulted in substantial damage to the rear spar. 1
A partial loss of engine power due to low cylinder compression. Contributing to the loss of engine power was rust formation in the cylinders due to inactivity.\r 1
The pilot's failure to adequately manage the available fuel supply, resulting in fuel starvation and a total loss of engine power. Contributing to the accident was the inadequate preflight by the pilot and flight instructor, and the flight instructor's failure to monitor the fuel levels. 1
The student pilot’s improper landing flare, which resulted in a hard, porpoised landing.\r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing on the grass runway. 1
The failure of the nose landing gear down-lock piston to engage due to paint accumulation, which resulted in a nose landing gear collapse during landing. Also causal was the failure of the facility that performed the painting to comply with manufacturer guidance regarding painting of the airplane. 1
The pilot’s unstabilized approach, which resulted in the airplane’s wing striking the ground while the pilot was maneuvering to realign with the runway.\r\n\r 1
The jumpmaster's failure to guard the reserve parachute ripcord, which caused an inadvertent deployment of his reserve parachute. 1
The airplane's encounter with a depression while the pilot applied excessive braking during the landing roll on a grass airstrip, which resulted in a nose-over. 1
The flight instructor's delay in aborting the takeoff from a turf runway, which resulted in a runway overrun. 1
A total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation.\r\n\r 1
A partial loss of engine power for reasons that could not be determined, because an examination of the airplane did not identify a specific reason for the loss of engine power.\r 1
The noninstrument-rated pilot's decision to depart on and continue a flight over mountainous terrain into forecast instrument metrological conditions, icing, and hazardous wind conditions that exceeded the airplanes performance capabilities and resulted in an uncontrolled descent and collision with terrain. 1
The pilot’s decision to continue the unstabilized approach and his failure to extend the landing gear before landing. \r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in a runway excursion. 1
The pilot’s inadequate compensation for gusting wind during the landing flare, which resulted in a hard landing. \r\n\r 1
A partial loss of engine power due to a stuck exhaust valve and the pilot's exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. \r 1
The pilot's decision to fly at a low altitude, which resulted in the collision with a zipline. 1
The pilot's improper landing flare, which resulted in a hard landing and subsequent runway excursion. 1
The pilot's loss of control while maneuvering in night instrument conditions that included light-to-heavy rain with severe turbulence, updrafts and downdrafts, and hail. Contributing to the accident was the pilot experiencing spatial disorientation, his lack of flight experience in actual instrument conditions, and his failure to request weather avoidance assistance from air traffic control. 1
A total loss of engine power during initial climb due to fuel starvation. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the airplane and engine did not reveal any evidence of preimpact malfunctions or failures that would have precluded normal operation.\r\n\r 1
The student pilot's failure to maintain directional control during the aborted takeoff, which resulted in a runway excursion. 1
The pilot's failure to avoid electrical wires during low-altitude maneuvering, which resulted in a wire strike. 1
Landing gear collapse upon landing due to a hydraulic leak that led to insufficient pressure to fully extend and lock the gear in a down position. 1
The pilot’s failure to maintain directional control while landing in gusting wind conditions.\r 1
The pilot's failure to properly tighten the tension bolts during the installation of the alternator belt, which resulted in inadequate voltage to sustain ignition and the subsequent partial loss of engine power. 1
A partial loss of engine power due to a stuck exhaust valve and the noncertificated pilot's inadequate preflight planning, which resulted in the airplane being overloaded, both of which led to the airplane's inability to attain a positive climb rate. Contributing to the accident was the pilot's improper decision to attempt to return to the airport at low altitude and his subsequent failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack, which led to an aerodynamic stall. 1
The pilot’s failure to ensure that the aerial pickup towline was not entangled around the horizontal stabilizer after the banner pickup. \r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack during departure due to being distracted by looking for his phone. \r\n\r 1
The pilot's failure to verify the usable fuel in the fuel tanks, which resulted in an inaccurate fuel totalizer setting during preflight, fuel exhaustion, and a total loss of engine power. 1
A total loss of engine power due to fuel vapor lock. Contributing to the loss of engine power were the corrosion of the spark plugs and the spacing of the electrode gaps.\r 1
The pilot’s failure to maintain clearance from trees while maneuvering at a low altitude.\r 1
The pilot receiving instruction's inadvertent application of throttle during the engine start, which led to an inadvertent acceleration and a roll-over. 1
The flight crew's failure to maintain an appropriate approach speed and obtain an appropriate touchdown point on the runway, which resulted in a runway overrun.\r 1
The pilot’s delayed crosswind correction during the landing roll with a gusting left crosswind, which resulted in the airplane weathervaning and nosing over.\r\n\r 1
The pilot's selection of a landing runway which, given the wind and traffic conditions, was susceptible to high crosswinds and the translation of wake turbulence across its approach path, and the controller's and pilot's failure to ensure separation from the B757 and its wake, which resulted in a low-altitude encounter with wake vortices that the pilot was unable to recover from. \r\n\r\n\r\n\r 1
A catastrophic engine failure due to lack of lubrication due to the absence of 2 piston cooling nozzles that backed out of their respective threaded bores, which resulted in a forced landing on unsuitable terrain.\r 1
The pilot's improperly planned landing, which resulted in a strike with power lines. 1
A partial loss of engine power due to the improper assembly of the mechanical fuel pump. 1
The student pilot's improper landing flare in crosswind conditions, which resulted in a porpoised hard landing and a runway excursion. 1
The flight instructor's loss of control during an aerodynamic stall demonstration, which resulted in an inadvertent spin from which he was unable to recover. Contributing to the accident was the flight instructor's lack of familiarity with the airplane's stall characteristics. 1
A failure of the No. 1 piston pin plug due to corrosion in the cylinder barrel, which resulted in oil contamination, oil starvation to the crankshaft connecting rod bearings, and a subsequent partial loss of engine power. 1
The pilot's improper landing flare, which resulted in a bounced, hard landing. 1
Impact of the lift cable after it exited the helicopter during liftoff with the main rotor (MR) blades, which resulted in the separation of an MR blade tip and the vertical vibration of the helicopter.\r\n\r 1
The pilot’s failure to go around after recognizing that the airplane was high and fast, which resulted in a long landing on a wet runway and a runway excursion. \r\n\r 1
The separation of the 90° tail rotor gearbox assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs due to the helicopter experiencing highly repetitive agricultural flight profiles for which it was not designed.\r 1
The pilot’s failure to maintain directional control during the takeoff roll in crosswind conditions, which resulted in a runway excursion. \r\n\r 1
the flight attendant losing her balance as she was removing her carry-on baggage resulted in her falling against an arm rest causing the serious injury. 1
The pilot’s use of an excessive pitch attitude during the landing flare, which resulted in a bounced landing.\r 1
The separation of the main rotor assembly due to mast bumping. 1
The pilot's decision to continue the taxi on unsuitable muddy terrain, which resulted in a nose-over. 1
A failure of the fuel tank selector valve in a partially closed position, which resulted in fuel starvation to the engine and a total loss of engine power. 1
The flight instructor’s delayed remedial action, which resulted in his failure to maintain directional control during a go-around and a runway excursion. \r\n\r 1
The pilot's failure to use the proper hand propping procedures, resulting in a runaway airplane and an impact with trees. 1
The pilot's failure to maintain directional control during the landing roll in shifting wind conditions. 1
The noninstrument-rated pilot's inadequate preflight and in-flight weather planning and continued flight into instrument meteorological conditions, which resulted in impact with trees and terrain. 1
The pilot's failure to recognize the tailwind condition and maintain directional control during the landing roll, which resulted in a runway excursion. 1
The pilot’s failure to maintain directional control during takeoff, which resulted in a runway excursion.\r 1
The pilot's failure to maintain airplane control while landing in windy conditions. 1
The No. 2 cylinder exhaust valve being stuck in the “full open” position due to carbon deposits, which resulted in a total loss of engine power. 1
The pilot’s failure to maintain a stable descent rate and his improper landing flare, which resulted in a hard landing. \r\n\r 1
A stuck No. 3 cylinder exhaust valve, which resulted in failure of the cylinder's valvetrain components, breach of the cylinder's rocker box cover, and partial loss of engine power due to oil starvation. 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, a total loss of engine power, and a forced landing. 1
The pilot's intentional low-altitude operation, which resulted in his failure to maintain clearance from unmarked utility wires. 1
The pilot's inadequate compensation for gusting crosswinds, which resulted in a bounced landing and nose-over. 1
The pilot’s decision to take off with a prevailing tailwind and insufficient distance to ensure obstacle clearance, which resulted in a collision with a tree. \r 1
A total loss of engine power due to the failure of the intake valve in the No. 3 cylinder for reasons that could not be determined based on the available information. \r\n\r 1
The Bama 3 pilot's failure to properly conduct an overshoot maneuver and his premature climb before he was clear of the lead airplane, Bama 1, which lead to a midair collision. 1
The air traffic controller issuing the aircraft a clearance to land while there was a vehicle authorized to be on the same runway. Contributing to the incident was the air traffic controller's decision to not simulcast the local control and ground control frequencies, and, the reduced visibility at the airport as a result of the weather. 1
The pilot's failure to maintain directional control during the landing roll in cross wind conditions. 1
The noncertificated pilot's decision to fly the weight-shift-controlled aircraft without having received training in the aircraft type, which resulted in his loss of aircraft control shortly after takeoff. 1
The pilot’s inadequate preflight planning, his decision to take off knowing the airplane was over its gross takeoff weight, and his failure to abort the takeoff after he realized that the airplane was not accelerating as expected, which resulted in a runway excursion. \r 1
The pilot’s loss of directional control during a landing attempt at night, which resulted in a delayed go-around procedure and subsequent impact with terrain. Contributing to the accident was the pilot’s lack of recent flight experience.\r\n\r 1
A collapse of the main landing gear for reasons that could not be determined based on the available evidence.\r 1
A total loss of engine power during approach for reasons that could not be determined because engine examinations did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation.\r 1
A clamp rubbing a hole in a fuel drain line, which resulted in an engine compartment fuel leak and subsequent engine fire. 1
An in-flight failure of a main rotor blade due to fatigue cracks. Contributing to the failure of the main rotor blade was the absence of guidance to the operator to inspect an area of the main rotor blade known to be susceptible to fatigue cracks and the accident helicopter type certificate holder’s lack of information of an existing inspection published by another restricted-category type certificate holder of the same model helicopter.\r 1
The pilot’s failure to maintain the proper airspeed during final approach and his subsequent loss of directional control during landing, which resulted in a runway excursion.\r 1
A partial loss of engine power due to debris in the No. 1 cylinder that damaged the spark plugs. 1
The loss of lateral/bank control during takeoff due to the pilot’s decision to operate the airplane with a known fuel imbalance. \r 1
The pilot's failure to maintain adequate airspeed after becoming distracted by the opening of the gull-wing cabin door during takeoff, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall at a low altitude. Contributing to the accident was the pilot's failure to ensure that the right gull-wing cabin door was properly latched before takeoff. 1
The pilot's failure to maintain directional control during a simulated left engine failure during takeoff. Also causal to the accident was the flight instructor's delayed remedial action to maintain directional control and reduce the right engine mixture control. 1
The pilot’s failure to ensure that adequate fuel was onboard for the flight, which resulted in fuel exhaustion and the loss of engine power.\r\n\r 1
The bystander's decision to walk onto the runway, which resulted in him being struck by the glider's left wing. 1
The pilot’s failure to attain a proper glidepath on approach for landing, which resulted in impact with trees. Contributing to the accident was a partial, temporary loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. \r 1
The pilot’s improper fuel management before landing, which resulted in fuel starvation and the subsequent total loss of engine power during a subsequent go-around when the fuel became unported during the climbing turn.\r 1
The loss of control during approach for reasons that could not be determined due to postimpact fire damage. 1
The pilot’s decision to take off with a gusting quartering tailwind and his subsequent loss of airplane control. \r\n\r 1
An in-flight collision with multiple birds. 1
A total loss of engine power due to fuel starvation, which resulted from the pilot’s mismanagement of the available fuel. \r 1
The pilot's failure to accurately determine the airplane's fuel quantity before the flight, which resulted in a total loss of engine power due to fuel exhaustion. 1
The airplane's encounter with a depression in a dirt runway during takeoff, which resulted in a tail strike. 1
An abrupt pitch-up maneuver following a descent, which resulted in the in-flight separation of the right wing due to the overload failure of both the forward and aft right wing attachment brackets. 1
A loss of aircraft control for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures of the flight controls that would have precluded normal operation. 1
The pilot’s failure to ensure that sufficient fuel was available for the flight, which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot's improper engine start procedure, which resulted in a loss of control on the ground and collision with a tree. 1
The pilot’s failure to maintain directional control of the airplane during landing with a crosswind.\r\n\r 1
The total loss of engine power for reasons that could not be determined because postaccident examination of the airplane did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. \r 1
The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion. 1
The overstress failure of the landing gear connecting rod and the improper installation of the arresting cables, which allowed the landing gear door to depart in flight and impact the airplane. 1
The airplane's collision with mountainous terrain while operating in an area of reduced visibility and icing conditions. Contributing to the accident was the pilot's inadequate preflight planning, which would have identified deteriorating weather conditions along the planned route of flight. 1
A loss of biplane control during aerobatic maneuvers for reasons that could not be determined because a portion of the biplane's flight control system was not recovered and could not be tested. 1
A collision with deer on the runway during the takeoff roll.\r 1
The pilot's loss of control while maneuvering shortly after takeoff. Contributing to the loss of control was the pilot's attempt to climb with the flaps fully extended. 1
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion. 1
The passenger's failure to follow the pilot's instructions for properly securing herself during landing, which resulted in her serious injury when the balloon landed hard and the basket was dragged. 1
The other pilot's failure to maintain directional control during the landing roll and to see and avoid the airplane stopped on the edge of the runway. 1
The pilot's failure to maintain airplane control during takeoff/initial climb due to his inexperience in the airplane make and model and his refusal to obtain training in the airplane. 1
The pilot’s unstabilized approach and delayed application of full throttle for a go-around, which resulted in an uncontrolled descent.\r 1
A partial loss of engine power due to the pilot's improper in-flight fuel management, which resulted in fuel starvation. 1
The pilot’s failure to set the proper flap position before the short field takeoff, which resulted in a runway excursion and impact with terrain.\r 1
The pilot's improper pitch and power control during landing in a straight float-equipped airplane on grass in crosswind conditions, which resulted in a loss of directional control. 1
The pilot’s improper compensation for changing wind during the landing flare, which resulted in an off-centered landing and a subsequent loss of directional control. \r\n\r 1
The pilot’s failure to maintain directional control of the airplane during landing in gusty crosswind conditions. \r\n\r 1
A loss of airplane control for reasons that could not be determined due to the extensive impact and fire damage to the airplane. 1
The pilot's failure to maintain proper yaw and roll control during takeoff, which resulted in excessive adverse yaw upon liftoff. 1
The helicopter flight instructor's inadequate demonstration of a simulated engine failure, which resulted in a hard landing. 1
The student pilot's exceedance of the airplane's critical angle of attack during a steep climbing turn following a touch-and-go landing, which resulted in an aerodynamic stall at too low of an altitude to recover. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack during a climbing turn after takeoff, which resulted in an aerodynamic stall/spin. Contributing to the accident was the pilot's inadequate training in the airplane, which did not include training on the airplane's stall characteristics. 1
The pilot's failure to perform a go-around when he recognized that the airplane was high and fast during the final approach, which resulted in an improper landing flare and a hard landing. 1
A No. 1 engine fire caused by a fuel manifold supply line high cycle fatigue crack which led to a fuel leak that subsequently ignited on hot engine case surfaces. The fatigue crack originated and progressed due to elevated fuel manifold assembly vibration levels. Engine vibration testing identified a combustor tone that excites a natural (resonant) frequency of the fuel manifolds at specific engine speeds on Pratt & Whitney PW4000-94 and -100 inch fan series engines that feature a TALON II combustor. 1
The first officer's failure to attain the proper touchdown point and the flight crew's failure to call for a go-around, which resulted in the airplane landing more than halfway down the runway. Contributing to the incident were, the first officer's initiation of the landing flare at a relatively high altitude and his delay in reducing the throttles to idle, the captain's delay in manually deploying the speed brakes after touchdown, the captain's lack of command authority, and a lack of robust training provided by the operator to support the flight crew's decision-making concerning when to call for a go-around. 1
The pilot's failure to maintain clearance from a cotton crop while maneuvering during agricultural application operations, which resulted in a loss of airplane control.\r 1
A total loss of engine power during takeoff for reasons that could not be determined based on available information. 1
The failure of the high-pressure turbine (HPT) stage 2 disk, which severed the main engine fuel feed line and breached the right main wing fuel tank, releasing fuel that resulted in a fire on the right side of the airplane during the takeoff roll. The HPT stage 2 disk failed because of low-cycle fatigue cracks that initiated from an internal subsurface manufacturing anomaly that was most likely not detectable during production inspections and subsequent in service inspections using the procedures in place. Contributing to the serious passenger injury was (1) the delay in shutting down the left engine and (2) a flight attendant's deviation from company procedures, which resulted in passengers evacuating from the left overwing exit while the left engine was still operating. Contributing to the delay in shutting down the left engine was (1) the lack of a separate checklist procedure for Boeing 767 airplanes that specifically addressed engine fires on the ground and (2) the lack of communication between the flight and cabin crews after the airplane came to a stop. 1
The noncertificated pilot’s loss of airplane control while maneuvering at a low altitude.\r 1
The failure of the left main landing gear (MLG) due to fatigue cracking that initiated at a corrosion pit. The pit formed in the absence of a required protective cadmium coating the cause of which could not be determined from available evidence. Contributing to the failure of the left MLG was the operator's overhaul limit, which exceeded that recommended by the airplane manufacturer without sufficient data and analysis to ensure crack detection before it progressed to failure. 1
The pilot's failure to maintain sufficient airspeed during the landing approach, which resulted in exceedance of the airplane's critical angle of attack and an aerodynamic stall. 1
A total loss of engine power due to fuel exhaustion, which resulted from the pilot’s reliance on the fuel gauge that was displaying an incorrect fuel amount due to the separation of the fuel transmitter float pin guide from the float.\r 1
Maintenance personnel’s failure to fully torque the fuel port cap, which allowed the cap to back off in flight and interrupted fuel flow to the engine, which resulted in a total loss of engine power.\r 1
The partial loss of engine power due to the failure of the magneto's internal timing during low-altitude maneuvering. 1
The failure of a cylinder piston pin, which resulted in an obstructed oil inlet screen, reduced the amount of oil available to the engine, and led to the subsequent loss of engine power. Contributing to the accident was the failure of the nonmechanic, who had recently changed the oil and oil filter, to recognize that metal in the filter was indicative of a problem. 1
The failure of the aircraft’s right overcenter washout strut split ring, which resulted in the pilot’s inability to maintain lateral control of the aircraft and subsequent ground impact.\r\n\r 1
The student pilot’s failure to maintain the proper approach path on landing, which resulted in impact with terrain short of the runway. \r\n \r 1
The pilot's failure to avoid the drainage pipe during the landing roll on a private grass airstrip. Contributing to the accident was the pilot's reduced forward view from the rear seat. 1
The non-instrument-rated pilot's loss of control due to spatial disorientation in instrument meteorological conditions, which resulted in an exceedance of the airplane's design stress limitations and a subsequent in-flight breakup. Contributing to the accident was the pilot's decision to continue visual flight into convective instrument meteorological conditions. 1
Total loss of power to the right engine during takeoff due to a fuel contaminant, which blocked the fuel flow transducer and resulted in fuel starvation to the engine. 1
The pilot's failure to maintain adequate airspeed during the initial climb and turn after takeoff, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall.\r 1
The pilot’s failure to maintain clearance from a tree while maneuvering at low altitude. \r\n\r 1
The pilot's failure to set the wing flaps for takeoff, which resulted in an aerodynamic stall, an aborted takeoff, and a runway overrun. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r\n\r 1
The pilot's inappropriate decision to continue the flight into higher elevation under high-density altitude conditions, which degraded the glider's climb performance and resulted in impact with trees short of the intended runway. 1
The pilot’s failure to maintain directional control during landing with a crosswind. \r\n\r 1
The floatplane pilot's improper landing flare during landing on choppy water with a tailwind, which resulted in a nose-over. Contributing to the accident was the pilot's failure to determine the wind direction before landing. 1
The helicopter pilot’s failure to maintain sufficient separation between the main rotor blade and a power line during line guard installation, which resulted in an electrical arc to the main rotor. \r\n\r 1
The pilot's failure to maintain directional control during an attempted aborted landing in gusty crosswind conditions, which resulted in a runway excursion and an impact with a tree. 1
The pilot's failure to maintain directional control during the landing roll in gusting crosswind conditions, which resulted in a runway excursion. Contributing to the accident was the foot pad cover slipping off the right rudder pedal during the landing roll. 1
The student pilot’s improper landing flare, which resulted in a bounced landing, and the flight instructor’s inability to recover the airplane, which resulted in a runway excursion.\r\n\r 1
The pilot's premature turn during the takeoff climb and subsequent turn to avoid trees, which resulted in his exceedance of the airplane’s critical angle-of-attack and a subsequent aerodynamic stall. 1
The pilot's severe impairment from carbon monoxide poisoning in flight, which resulted in a loss of control and a subsequent collision with trees and terrain. 1
The pilot's loss of airplane control during initial climb due to an excessively nose-high attitude. Contributing to the accident was the pilot's failure to properly set the elevator trim before takeoff in accordance with the Before Takeoff checklist. 1
The pilot’s improper landing flare, which resulted in a hard landing and the left main landing gear wheel separating from the airplane, followed by an aborted landing, and a subsequent ground loop during the follow-on landing.\r\n\r 1
The pilot's decision to depart with the airplane loaded above its maximum gross weight and at or just beyond its aft center of gravity limitations, which resulted in a loss of control during the initial climb. Contributing to the accident was the pressure to complete the flight as planned, and the pilot's use of multiple impairing drugs, which degraded his decision-making. 1
The pilot’s failure to reduce the throttle during the landing roll resulting in a loss of directional control.\r 1
The pilot's failure to maintain helicopter control while on the ground, which resulted in mast bumping. 1
The pilots’ failure to complete the Emergency Landing Gear Extension checklist and maintenance personnel’s failure to correctly repair spliced wires on the left main landing gear down limit switch, which prevented the pilots from knowing whether the gear was down and locked.\r 1
The student pilot's reckless flying attitude and use of multiple psychoactive drugs, which likely impaired his ability to maintain clearance from terrain while maneuvering at low altitude. 1
The flight instructor’s delayed remedial action while providing hover instruction in gusting wind conditions, which resulted in dynamic roll-over.\r 1
The flight instructor’s delayed remedial action during the approach for landing, which resulted in impact with terrain short of the runway threshold. Contributing to the accident was the student pilot’s failure to maintain an appropriate descent rate during the approach for landing.\r\n\r 1
The pilot’s inability to see and avoid a bird while landing in dark night conditions. 1
The pilot's failure to maintain adequate airspeed while maneuvering at low altitude during aerial application operations, which resulted in the airplane exceeding its critical angle-of-attack and entering an aerodynamic stall and spin. 1
A landing gear collapse during landing for reasons that could not be determined because postaccident examination and testing of the landing gear did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.\r 1
Excessive side loads imposed on the tailwheel A-frame during the takeoff roll, which resulted in a separation of the tailwheel and the subsequent loss of directional control. 1
The structural failure of both wings’ leading-edge slats, which resulted in a loss of airplane control.\r 1
The pilot's failure to go around after overshooting his intended touchdown point, which resulted in impact with farm equipment and terrain during an aborted landing attempt. 1
The failure of the Beech pilot to see and avoid the Diamond that was in front of and below his airplane on final approach and his use of an incorrect radio communication frequency for the airport. 1
The pilot’s failure to adequately survey the area of operation and his subsequent failure to maintain clearance from power lines during an agricultural application flight.\r\n\r 1
The pilot's failure to recognize and compensate for tailwind conditions during the landing roll, which resulted in a runway overrun and nose over. 1
The pilot's failure to monitor and/or transmit his position over the uncontrolled airport's common traffic advisory frequency, and his decision to continue the takeoff when he observed conflicting traffic on the runway. 1
The failure of both pilots to see and avoid each other while in level cruise flight, which resulted in a midair collision. 1
The pilot's failure to maintain aircraft control, which resulted in impact with terrain near the runway.\r 1
The pilot's failure to obtain a proper aimpoint during landing due to reduced visibility from the setting sun.\r\n\r\n\r 1
The pilot’s overcontrolling of the helicopter during an aborted slope landing from a hover, which resulted in a main rotor blade strike.\r 1
The airplane’s encounter with a developing sink hole during taxi on the ramp area.\r 1
The pilot's failure to maintain airplane control, which resulted in the airplane exceeding its critical angle of attack, an aerodynamic stall, and subsequent flat spin into terrain. 1
The pilot's failure to maintain helicopter control in gusting wind conditions, which resulted in the helicopter rescue net’s contact with a utility pole and serious injury to an occupant who fell from the rescue net. Contributing to the accident was the pilot’s and rescue personnel’s decision to continue the extraction in proximity to the pole. \r\n \r\n \r\n\r 1
The student pilot’s inadequate compensation for the quartering tailwind on landing, which resulted in a loss of directional control.\r\n\r 1
The pilot's inadequate preflight and in-flight weather planning, which resulted in continued flight into a thunderstorm and a subsequent loss of airplane control. 1
The pilot’s loss of gyroplane control during an intentional high-speed pass, which resulted in the gyroplane porpoising and impacting terrain. Contributing to the accident was the pilot’s decision to conduct the flight in an aircraft in which he had little experience flying despite knowing that air turbulence existed in and around the airport.
\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion, a nose over, and substantial damage to the right wing strut and fuselage. Contributing to the accident was the sun glare which inhibited the pilot's forward visual sight. 1
The pilot's inability to compensate for a dust devil during an aborted landing, which resulted in the left wing contacting the ground, a runway excursion, and the airplane coming to rest in a nose-down attitude. 1
The improper installation of quick release connectors in the fuel lines, which was not in accordance with the engine manufacturer's maintenance instructions and allowed air to be introduced into the fuel system and resulted in a partial loss of engine power. Also causal to the accident was the pilot's failure to maintain adequate airspeed and exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and impact with power lines. 1
The pilot's exceedance of the airplane's critical angle-of-attack while maneuvering at low altitude, which resulted in an aerodynamic stall. 1
The pilot's inadequate inspection of the off-airport landing area, which resulted in an encounter with standing water and a nose over. 1
The pilot’s failure to maintain directional control during the takeoff roll, which resulted in a runway excursion.\r 1
The pilot's failure to maintain directional control of the airplane during landing in gusting wind conditions, which resulted in a ground loop. 1
The pilot's loss of control attempting to recover from a low-level aerobatic maneuver. Contributing to the accident was the pilot's decision to attempt the low-level maneuver which significantly reduced any margin for error. 1
A partial loss of engine power for reasons that could not be determined based on available information. 1
The pilot’s improper inflight fuel management, which resulted in fuel exhaustion and an inability to avoid contact with power lines. \r 1
The glider pilot's descent below the glidepath and the subsequent hard, off-airport landing. 1
The pilot’s inadequate preflight inspection and failure to assess the airplane’s fuel quantity before departure, which resulted in fuel exhaustion.\r\n\r 1
The pilot’s failure to maintain clearance from an antenna atop a tower while maneuvering at a low altitude and the airplane’s subsequent impact with terrain during an attempted off-airport landing.\r 1
The pilot's failure to maintain directional control during an attempted go-around, which resulted in a runway excursion and a nose over. Contributing to the accident was the pilot's failure to remove the carburetor heat during the attempted go-around in high density altitude conditions. 1
The pilot's failure to attain the proper touchdown point on a grass airstrip and the airplane's subsequent collision with trees during an attempted aborted landing. 1
The pilot’s loss of directional control during the takeoff roll, which resulted in a runway excursion.\r 1
A dual loss of engine power for undetermined reasons after the pilot's improper decision to attempt another maneuver after recovering from a perceived compressor stall, rather than returning to the airport. 1
The student pilot’s failure to maintain directional control during the takeoff roll and the flight instructor’s delayed remedial action, which resulted in a runway excursion. \r\n\r 1
The pilot’s failure to extend the landing gear during landing.\r\n\r 1
The pilot's failure to maintain directional control during the landing roll in crosswind conditions, which resulted in a runway excursion. 1
The in-flight failure of the canopy and subsequent loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation. 1
The pilot's improper landing touchdown attitude, which resulted in a propeller strike, and his inappropriate decision to abort the landing after the propeller had contacted the runway, which resulted in a loss of thrust and led to an aerodynamic stall during climb. Contributing to the accident was the pilot's lack of recent experience in the accident airplane make and model. 1
The pilot's failure to maintain airplane control during the landing roll, which resulted in a nose-over. 1
The pilot's over correction during the landing roll, which resulted in a loss of directional control, runway excursion, a landing gear collapse, and substantial damage to the right wing. 1
The student pilot’s failure to maintain an appropriate descent rate and runway alignment during the landing flare, which resulted in the airplane touching down left of the runway and impacting a ditch. \r\n\r 1
The pilot’s selection of unsuitable terrain for an off-airport precautionary landing, which resulted in a nose-over. \r 1
The pilot’s decision to take off from a wet, snowy airstrip and his delayed decision to abort the takeoff, which resulted in a runway excursion. \r 1
The fatigue fracture failure of both main landing gear (MLG) legs during the landing roll, which resulted in the collapse and separation of both MLG legs. \r\n \r 1
The pilot's exceedance of the airplane's critical angle-of-attack during the initial climb after an attempted go-around, which resulted in an aerodynamic stall. 1
The pilot/mechanic's failure to maintain airspeed following a loss of engine power, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Also causal was the pilot/mechanic's failure to service the engine with oil following maintenance, which resulted in the total loss of engine power. 1
The noncertificated pilot’s failure to maintain helicopter control during initial climb.\r 1
Incorrect installation of the oil temperature probe and an inadequate annual inspection that failed to detect leaking oil around the loose probe, which resulted in a catastrophic engine failure due to oil starvation.\r 1
The pilot’s decision to land off airport at night and his lack of positional awareness, which resulted in his landing at the wrong location and impacting a fence.\r\n\r 1
The pilot's loss of helicopter control during landing, which resulted in a hard landing and collision with a wall. 1
The pilot's delayed action to add power during the approach, which resulted in an impact with terrain prior to the approach end of the runway. 1
The pilot's decision to land in an area of low visibility and ground fog, which resulted in collision with water. 1
A total loss of engine power due to the improper torqueing of the magneto, which led it to its malfunctioning in flight. 1
The pilot's improper touchdown point during landing, which resulted in the left wing's subsequent impact with a cornfield. 1
A lack of lubrication in the engine for reasons that could not be determined based on the available information, which resulted in a failure of the No. 4 connecting rod and a subsequent total loss of engine power. 1
The pilot's failure to maintain clearance from the ground obstacle during the landing with gusting winds present. 1
The loss of engine power due to carburetor icing. Contributing to the accident was the pilot's use of automobile gasoline, which increased the likelihood of carburetor icing. 1
The pilot’s failure to maintain adequate airspeed during takeoff, which resulted in an exceedance of the airplane’s critical angle of attack and subsequent aerodynamic stall.\r 1
A total loss of engine power due to fuel starvation as a result of debris obstructing the fuel strainer screen and corrosion of the fuel strainer bowl.\r 1
The pilot’s improper crosswind correction, which resulted in a loss of pitch control and nose-over.\r\n\r 1
Water contamination of the fuel due to the pilot’s inadequate preflight inspection, which led to a total loss of engine power. Contributing to the accident was the pilot’s failure to complete the engine-out checklist, which resulted in an excessive loss of altitude and the inability to glide to the intended airport.\r\n\r 1
The flight instructor’s delayed remedial action, which resulted in an unstabilized approach and collision with runway approach lights.\r\n\r 1
A total loss of engine power due to a stuck carburetor float. The reason the carburetor float became stuck could not be determined because postaccident examination of the float and needle/seat revealed no anomalies. 1
The pilot’s improper landing flare in gusting crosswind conditions, which resulted in a nose landing gear collapse. \r 1
The flight crew's decision to continue the visual flight rules flight into deteriorating visibility and their failure to perform an immediate escape maneuver after entry into instrument meteorological conditions, which resulted in controlled flight into terrain (CFIT). Contributing to the accident were (1) Hageland's allowance of routine use of the terrain inhibit switch for inhibiting the terrain awareness and warning system alerts and inadequate guidance for uninhibiting the alerts, which reduced the margin of safety, particularly in deteriorating visibility; (2) Hageland's inadequate crew resource management (CRM) training; (3) the Federal Aviation Administration's failure to ensure that Hageland's approved CRM training contained all the required elements of Title 14 Code of Federal Regulations 135.330; and (4) Hageland's CFIT avoidance ground training, which was not tailored to the company's operations and did not address current CFIT-avoidance technologies. 1
The pilot's improper use of the control lock, combined with his incomplete execution of two pre-departure procedures, which resulted in a takeoff with the control lock installed. 1
The failure of the second airplane's pilot to see and avoid the first airplane as he was overtaking the first airplane. 1
The pilot’s decision to take off in high-density altitude conditions, which resulted in the powered parachute being unable to maintain a sufficient climb rate and its subsequent impact with power lines.\r\n\r 1
A partial loss of engine power during takeoff for reasons that could not be determined based on the available information following a thorough postaccident examination. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during a simulated engine failure and forced landing with a tailwind, which resulted in an aerodynamic stall. 1
The pilot's excessive cyclic input during a missed approach maneuver in night instrument meteorological conditions, which resulted in a loss of control and spiraling descent into terrain. 1
The airplane's departure from cruise flight for reasons that could not be determined based on the available information. 1
The failure of an induction elbow following an engine backfire, which resulted in an in-flight fire and loss of engine power.\r 1
The student pilot’s incorrect takeoff procedure, which resulted in a loss of main rotor rpm and the subsequent loss of directional control and runway excursion.\r\n\r 1
The pilot's failure to retract the landing gear, which resulted in a gear-down water landing and a nose over. 1
An inadvertent explosion of pyrotechnics, which were contained in a box that had been installed on the airplane's left main landing gear assembly spring leg which resulted in shrapnel striking the airplane's left wing and breaching the left wing fuel tank, which led to a subsequent fuel leak and fire. Contributing to the accident was the airplane owners' improper decision to install an untested pyrotechnic box and his failure to attain proper authorization to use it during the flight. 1
The pilot's excessive taxi speed, which resulted in a loss of control and subsequent nose over. 1
The pilot of Race 11’s failure to maintain clearance from Race 1 during takeoff, and the insufficient abort procedures specified within the race rules. Contributing to the accident was the pilot of Race 1’s decision to shut down the engine on the runway and his failure to follow existing abort procedures.\r 1
Loss of engine power due to a failure of the No. 3 cylinder head, which resulted in a forced landing and collision with ground equipment.\r 1
The failure of the landing gear system to either fully retract or extend due to a cracked hydraulic fitting flare, which resulted in the loss of hydraulic pressure. 1
The other pilot's failure to maintain adequate separation and visual lookout during landing, which resulted in his airplane colliding with the airplane ahead of it on the runway. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and noseover. Contributing to the accident was the failure of the seatbelt anchor bracket. 1
The pilot's improper decision to execute a maneuvering approach at low altitude during night conditions, which resulted in controlled flight into terrain. 1
The pilot's unstable approach and subsequent loss of airplane control during an attempted go-around. 1
incorrect installation of the frangible towing fuse that prevented the nose landing gear from extending. 1
the incorrect latching of the #2 Engine Fan Cowl following a routine maintenance check that resulted in separation of the cowl during takeoff. \r\n\r 1
The pilot's improper control inputs during takeoff, which resulted in the exceedance of the airplane's critical angle of attack and subsequent departure stall, and loss of airplane control. 1
The pilot receiving instruction's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack during a simulated engine failure and landing, which resulted in an aerodynamic stall. Contributing to the accident was the flight instructor's delayed remedial action. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot’s failure to recognize he was taking off with a tailwind and his inadequate compensation for taking off with a tailwind, which led to the airplane’s failure to attain a climb and a subsequent forced landing.\r\n\r 1
The pilot's fuel mismanagement, which resulted in fuel starvation to both engines and their subsequent loss of engine power. 1
The pilot’s improper preflight inspection during which he relied on the fuel totalizer and failed to ensure that sufficient fuel was onboard for the flight, which resulted in fuel exhaustion and a total loss of engine power. 1
The pilot’s improper decision to land the airplane on a wet runway, in heavy rain, with tires worn beyond safe limits, which resulted in a hydroplaning condition and subsequent loss of directional control.\r 1
A total loss of engine power for reasons that could not be determined following a successful postaccident engine run on the accident helicopter. 1
The pilot's failure to properly assemble the fuel pump, which resulted in the loss of fuel pressure and the subsequent partial loss of engine power. \r\n\r\n\r 1
The pilot’s failure to maintain an adequate glidepath during landing, which resulted in an unintended touchdown before the chosen landing area.\r\n\r 1
An uncommanded flap retraction for reasons that could not be determined, as a postaccident examination of the flap system did not reveal evidence of any preaccident anomalies. 1
The pilot’s failure to maintain airplane control during taxi in gusty conditions, which resulted in a nose-over and substantial damage to the rudder and wings. \r 1
The improper torque of the engine’s No. 3 cylinder intake pipe bolts, which resulted in the separation of the pipe and a partial loss of engine power. 1
The pilot's failure to maintain a positive climb rate during takeoff initial climb, resulting in an uncontrolled descent and collision with trees and terrain. 1
A hard landing which resulted in serious injury to a passenger. 1
The pilot's loss of airplane control shortly after takeoff as a result of spatial disorientation due to dark night conditions, the pilot's low overall night and instrument flight time, and his lack of recent night flights.\r\n\r 1
The failure of the aluminum nipple fuel supply line fitting, which resulted in an engine compartment fire.\r 1
The student pilot's failure to maintain adequate airspeed while maneuvering, which resulted in an aerodynamic stall and spin. Contributing to the accident was the student pilot's failure to properly assess her physical condition prior to conducting the flight. 1
The pilot's failure to maintain control of the helicopter, and adequate clearance, which resulted in a collision with a hangar. 1
The pilot’s improper positioning of the fuel selector valves, which resulted in a loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to follow preflight checklists. \r 1
The pilot did not see the wires resulting in the subsequent wire collision. 1
The instrument-rated pilot's decision to conduct a visual approach to the airport in night, instrument meteorological conditions, which resulted in controlled flight into terrain. Contributing to the accident was the pilot's loss of situational awareness, the controller's failure to provide clear and concise instructions to the pilot following his declaration of an emergency, and the controller's failure to provide adequate information to the pilot regarding the airplane's proximity to terrain. 1
A loss of the No. 1 cylinder’s compression due to a stuck exhaust valve caused by a lack of sufficient valve clearance, which resulted in a loss of engine power and a forced landing. Contributing to the loss of engine power were the worn intake and exhaust valves in cylinders No. 3 and 4.\r 1
An inadvertent collision with a utility wire for reasons that could not be determined from recorded data and examination of the helicopter and accident site. 1
The pilot's failure to ensure the canopy was locked during the pre-takeoff inspection which led to the canopy opening in flight and the pilot's failure to maintain aircraft control during the subsequent landing. 1
The pilot’s failure to maintain airplane control during a low-speed, high-pitch climb after the airplane experienced a loss of electrical power and subsequent total loss of engine power, which resulted in an aerodynamic stall. Contributing to the accident was the airplane’s modified electrical system and the pilot’s failure to obtain adequate familiarization and experience in the airplane with the recent slat-removed configuration.\r 1
The pilot failure to see and avoid the guide wire during the aerial application flight. 1
The pilot's inadvertent aerodynamic stall while maneuvering after a loss of engine power during initial climb. Contributing to the accident was the total loss of engine power for reasons that could not be determined because the investigation could not determine during postaccident examination whether any anomalies existed prior to the accident. 1
The pilot's inadequate preflight planning, which resulted in an attempted takeoff over the airplane's maximum gross weight and beyond its aft center of gravity limit. Contributing to the accident was the pilot's lack of total flight experience in the aircraft make and model. 1
The pilot’s failure to see and avoid trees during a low-level aerial application operation.\r 1
The pilot’s failure to extend the landing gear before landing.\r 1
The loss of engine power during cruise due to fuel exhaustion resulting in a forced landing on a cornfield. 1
A total loss of engine power due to fuel starvation for reasons that could not be determined because postaccident examination of the engine revealed no anomalies. \r\n\r 1
The pilot’s loss of airplane control during a gusting crosswind landing.
\r 1
The student pilot's loss of directional control during takeoff in gusting wind conditions. Contributing to the accident was the flight instructor's failure to intervene and apply corrective flight control inputs. 1
The in-flight fatigue failure of the crankshaft gear retaining bolt, which resulted in a total loss of engine power. Contributing to the accident were the pilot/owner’s failure to maintain the airplane in accordance with an airworthiness directive following a propeller strike and the improper installation of the lockplate. 1
The airplane's inadvertent encounter with wake turbulence during cruise flight, which resulted in a serious injury to a flight attendant. 1
The pilot's decision to fly at a low altitude and his subsequent failure to see and avoid the power lines.\r\n\r 1
A total loss of engine power due to detonation/preignition damage of the No. 6 cylinder. Contributing to the accident was the pilot’s decision to continue flight after receiving an indication of an impending engine failure.\r 1
The loss of engine power due to fuel starvation for reasons that could not be determined during postaccident examination of the fuel supply and fuel vent systems.\r 1
A loss of directional control during a crosswind landing. \r\n\r 1
The pilot's selection of an unsuitable takeoff area, resulting in a loss of control and subsequent inflight collision with terrain during takeoff. Contributing to the accident was the pilot's failure to use the checklist, resulting in an improper propeller pitch setting for takeoff, and the pilot's inadvertent partial application of the wheel brakes during the takeoff roll. 1
The pilot's decision to land on a wet runway and delayed go-around attempt, which resulted in a collision with terrain. 1
The failure of the pilot and personnel from the fixed base operator to assure the correct ground power unit was utilized to provide external power, resulting in damage to the aircraft's electrical wiring and subsequent damage to structure adjacent to the aircraft's battery. 1
An inadvertent collision with a bird, which resulted in substantial damage to the left wing. 1
The partial loss of engine power due to the exhaust valve rocker retaining stud backing out of the cylinder head, which resulted in the exhaust valve being stuck in the closed position. Contributing to the accident was the pilot’s failure to configure the airplane and fly it in a manner that would allow him to make the emergency landing in the field rather than overfly it, and the pilot’s failure to have the engine overhauled according to the recommended overhaul interval. \r 1
The pilot's failure to maintain control of the airplane during a go-around in gusting wind conditions following a partial loss of engine power for reasons that could not be determined, because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot's impairment due to his recent use of methamphetamine. 1
The student pilot's failure to maintain helicopter control during a practice hover. Contributing to the accident was the flight instructor's delayed remedial reaction. 1
The pilot’s failure to maintain clearance from a crop.\r 1
Mismanagement of fuel, which resulted in a total loss of power due to fuel starvation. 1
A loss of control during the attempted go-around, which resulted in an aerodynamic stall and impact with trees. 1
Maintenance personnel’s failure to secure the throttle mount bracket during a recent engine installation, which resulted in the loss of throttle movement and an inability to control engine power.\r 1
The pilots excessive use of the airplanes brakes during the landing roll, which resulted in a nose over. Contributing to the accident was the flight instructor's inadequate supervision of the training flight. 1
The noninstrument-rated pilot’s decision to continue visual flight into instrument meteorological conditions, which resulted in his loss of aircraft control and the resultant overstress and in-flight breakup of the weight-shift-control aircraft. \r\n\r 1
The pilot’s loss of helicopter control for reasons that could not be determined because postaccident examination of the helicopter did not reveal any mechanical malfunctions or failures that would have precluded normal operation. \r 1
The pilot's failure to maintain clearance from power lines during low-altitude flight in gusting wind conditions following his use of a sedating medication. 1
A total loss of engine power due to fuel exhaustion, which resulted from the flight instructor's inadequate preflight fuel planning. 1
The pilot's failure to maintain clearance from the antenna guy wire during an aerial application pass. 1
The pilot's failure to maintain control of the airplane during the landing roll on a wet sloping runway and his decision to go around before the airplane was configured for takeoff. \r\n\r 1
The pilot's mismanagement of the fuel system, which resulted in a total loss of engine power due to fuel starvation and the subsequent forced landing. 1
The pilot's inadequate monitoring of the environment and failure to maintain clearance from transmission wires during an aerial application flight. 1
The pilot's inadequate flare and failure to maintain aircraft control while landing. 1
Maintenance personnel’s improper surface preparation of the accessory mount pad for the installation of the engine’s dry vacuum pump, which resulted in the loss of engine oil, oil pressure, and engine power during flight. Contributing to the accident was the lack of a postmaintenance leak check. \r 1
The pilot’s failure to release the load of agricultural product before the landing approach and his failure to maintain aircraft control during an initial climb after an aborted landing, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. \r 1
The commercial pilot’s exceedance of the airplane’s critical angle-of-attack during the initial climb, which resulted in an aerodynamic stall and impact with terrain. Contributing to the commercial pilot’s failure to recognize and remediate the stall were his lack of experience as a flight instructor and lack of recent experience in the accident airplane make and model.\r\n\r 1
The disconnection of baggage carts that subsequently collided with the parked airplane following the tug driving over a dip in the roadway.\r\n
\r 1
The pilot's unstable landing approach which resulted in a long landing, and subsequent collision with terrain. 1
A total loss of engine power for reasons that could not be determined because a postaccident examination of the airframe and engine test run revealed no mechanical malfunctions or failures that would have precluded normal operation. 1
A loosening of the engine throttle cable from its support clamp during flight, which resulted in a loss of throttle control.\r 1
The student pilot's improper landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's improper compensation for wind conditions. 1
The pilot’s incapacitation in flight as the result of a an acute cardiac event, which resulted in a loss of control and collision with terrain. \r 1
The partial loss of engine power for reasons that could not be determined because thermal damage to the engine prevented a complete examination. \r 1
A total loss of engine power during maneuvering due to an obstruction from air intake filter material being ingested into the carburetor, which resulted in a forced landing. \r\n\r\n \r\n\r 1
The pilot's failure to maintain aircraft control during landing which resulted in an aircraft nose-over. 1
The air traffic controller’s failure to identify a conflict between two aircraft and to issue an adequate clearance, which resulted in a loss of required separation. Contributing to the incident was the Federal Aviation Administration’s failure to provide controllers adequate automated conflict detection assistance, which removed a layer of backup to controller judgment and reduced the overall level of safety.\r 1
The student pilot's inadequate flare and loss of aircraft control during landing, which resulted in multiple bounces. 1
The pilot's failure to maintain the proper approach path for landing, and his delayed remedial action, which resulted in an undershoot and collision with terrain. 1
The pilot/owner/builder's improper weight and balance calculations, which rendered the airplane uncontrollable in the pitch axis. 1
A total loss of engine power during a practice autorotation for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. \r\n\r 1
The pilot’s improper inflight planning and improper decision to deliberately operate the airplane at low altitude in close proximity to obstructions and rising terrain. Contributing to the accident were the pilot’s improper preflight planning and the Federal Aviation Administration’s inappropriate decision to issue a 14 Code of Federal Regulations Part 135 certificate to the operator despite the pilot’s history of accidents, incidents, reexaminations, and checkride failures.\r 1
The pilot’s miscalculation of the fuel quantity requirements, which resulted in fuel exhaustion. \r 1
The sun glare and the pilot's subsequent loss of airplane control. 1
The pilot's loss of control after the weight-shift-control aircraft encountered low-level wind shear shortly before touchdown. Also causal to the accident was the pilot's inadequate preflight weather assessment that failed to correctly determine the actual location and speed of the approaching line of thunderstorms. 1
The pilot's failure to maintain clearance from terrain while maneuvering at low altitude in turbulent conditions over mountainous terrain. Contributing to the accident was the pilot's improper decision to traverse the mountainous area with the airplane over its maximum gross weight and with a forward center of gravity.\r\n\r\n \r\n\r 1
The pilot's failure to adequately secure cargo (a jacket), which resulted in the jacket exiting the cabin compartment and colliding with the tail rotor during cruise flight. 1
The pilot's inadequate flare which resulted in a loss of aircraft control during landing. 1
The flight instructor’s delayed decision to abort the simulated engine out maneuver, his failure to unfeather the propeller before restoring engine power, and his inadequate airspeed management, which led to an aerodynamic stall at low altitude.\r 1
The inadequate torque of the propeller mounting bolts and inspection of the propeller, which resulted in the fatigue fracture of the bolts and a subsequent in-flight separation of the propeller assembly. 1
The pilot's inadvertent application of the brake which resulted in the loss of directional control during the landing roll. 1
The mechanic’s improper installation of the landing gear extend/retract switch, which resulted in the retraction of the landing gear during the aborted takeoff. \r 1
The pilot's loss of directional control during landing after the airplane encountered uneven pavement at the intersection with a crossing runway. 1
The pilot’s failure to maintain control of the amphibious airplane while practicing touch-and-go takeoffs and landings on a reservoir.\r 1
The pilot’s inadequate flare during landing on water with a glassy condition, which resulted in the airplane nosing over. \r 1
The pilot's inability to maintain directional control of the airplane resulting in a runway excursion and collision with terrain. 1
The pilot's inadequate landing flare and subsequent loss of directional control during the landing roll. 1
The pilot’s loss of aircraft control during landing, and his failure to maintain directional control. \r 1
The failure of the engine to provide sufficient power when commanded by the pilot during the power recovery phase of a practice autorotation for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's disorientation as a result of dust which reduced visibility. 1
The glider pilot's failure to maintain directional control during the initial climb while being towed, which led to the tow plane's unstable flight and its subsequent aerodynamic stall. Contributing to the accident was the tow pilot's delayed release of the glider. 1
The pilot’s improper fuel management, which resulted in the exhaustion of the fuel supply in the selected fuel tank and a subsequent total loss of engine power.\r 1
The failure of the right main landing gear (MLG) transmission mounting bracket coupled with the differential rigging of the two landing gear cables, which prevented the right MLG from moving to the down-and-locked position before landing.\r\n\r\n \r\n\r 1
The pilot’s inadequate visual lookout, which resulted in a collision with a static line. \r\n\r 1
The motor vehicles operators' lack of attention, and improper decision to cross the runway with the runway alert system active, resulting in a collision with the airplane. 1
The pilot's failure to retract the landing gear wheels prior to a water landing, resulting in a nose over upon touchdown. 1
The pilot's decision to attempt a return to his departure airport which resulted in the glider's encounter with atmospheric conditions where the lift was not sufficient to maintain flight and an off-airport landing. 1
The pilot's impaired judgment due to the use of marijuana, which led to his improper decision to fly the airplane over its maximum gross weight and his subsequent loss of airplane control during takeoff with gusting wind conditions. 1
Maintenance personnel’s failure to apply sufficient torque on the throttle control lever nut, which resulted in a loss of throttle control and subsequent loss of engine power.\r 1
The pilot's inability to maintain directional control after the airplane's main landing gear tire deflated during takeoff. 1
The loss of airplane control during a precautionary landing resulting in a hard landing. 1
The failure of the right wing under normal race loads due to an improper repair of the right wing spar that reduced its structural strength following a previous landing accident.\r 1
A loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r\n\r\n \r\n\r 1
The student pilot's inadequate flare resulted in a hard landing. 1
The pilot’s failure to attain adequate airspeed during the initial climb, which resulted in an exceedance of the wing’s critical angle-of-attack and a subsequent aerodynamic stall. Contributing to the accident was the pilot’s lack of experience in the airplane make and model. \r 1
The loss of power due to the failure of the No. 2 exhaust valve and rocker boss during takeoff. \r\n\r 1
The pilot's inadequate recovery from a bounced landing, resulting in a runway excursion and collision with trees. 1
The pilot’s overconfidence, which led to his improper decision to continue flight in the recently purchased, unregistered airplane without acquiring training and to his continued erratic handling of the airplane and subsequent loss of airplane control.\r 1
The mechanic’s failure to detect excessive wear on the engine’s lateral snubber vibration mount during the latest annual inspection, which resulted in an in-flight engine failure and a subsequent forced landing.\r 1
A loss of control and subsequent runway excursion while attempting to avoid a collision with a deer on takeoff. 1
The pilot's misjudged approach which resulted in overshooting the landing point and insufficient remaining landing surface. 1
The pilot's failure to maintain control of the airplane while returning to the airport immediately after takeoff, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall during the turn. Contributing to the accident was the pilot's inadequate preflight planning, which resulted in the airplane being over maximum gross weight and its subsequent decrease in takeoff climb performance. 1
The pilot’s inability to maintain airplane control while attempting a precautionary landing after takeoff due to his incorrect setting of the rudder trim tab, which resulted in a significant turning tendency during flight. 1
The pilot’s failure to maintain airplane control during takeoff. Contributing to the severity of the accident was the pilot’s retraction of the landing gear before establishing a positive climb rate, which resulted in a gear-up landing.\r 1
The pilot’s failure to maintain adequate airspeed during initial climb, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall/spin. Contributing to the accident was that pilot’s psychiatric disease, which impaired his decision-making ability.\r 1
The pilot’s failure to see and avoid power lines during a low-level aerial application operation.\r 1
A fatigue failure of the left engine’s throttle cable, which resulted in the loss of left engine power.\r 1
The pilot did not maintain control of the airplane during takeoff from a grass strip. Contributing was the airplane being loaded beyond its capability for the runway. 1
The pilot’s failure to monitor the environment and to maintain clearance from wires during takeoff.\r 1
the capabilities of the beverage cart were exceeded which resulted in the cart toppling over and fracturing the flight attendant's foot. 1
The pilot's selection of an unsuitable takeoff area, resulting in an inflight collision with vegetation/brush during takeoff. 1
The pilot's improper landing flare and recovery from a bounced landing resulting in loss of aircraft control. 1
The misfueling of the airplane with jet fuel instead of the required aviation fuel, and the resultant detonation and a total loss of engine power during initial climb. Contributing to the accident were the line service technician's inadvertent misfueling of the airplane, the pilot's inadequate supervision of the fuel servicing, and the fixed-base operator's use of a small fuel nozzle on its jet fuel truck. 1
The flight instructor's failure to adequately brief and demonstrate the simulated emergency procedure to the pilot under instruction and his delayed remedial action and inadequate supervision during the maneuver, which resulted in an excessive sink rate and a hard landing.\r\n\r 1
The pilot’s inadequate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s impairment due to alcohol ingestion. \r 1
The pilot did not maintain control of the airplane during the go-around. 1
The failure of the elevator control tube due to corrosion, which resulted in a loss of elevator control and collision with terrain. 1
The pilot’s impairment and subsequent incapacitation for reasons that could not be determined because the pilot and airplane were not recovered.\r 1
The pilot's failure to maintain adequate airspeed and exceedance of the critical angle of attack during a go-around with a tailwind condition, which resulted in an aerodynamic stall. A contributing factor to the accident was the pilot's decision to continue the approach with opposing traffic.\r\n\r\n \r\n\r 1
The pilot's decision to attempt a steep turn to return to the airport after reporting an emergency. The reason for the emergency could not be determined because postaccident examination of the airframe and engine did not reveal any mechanical anomalies that would have precluded normal operation. 1
The pilot's improper deployment of the banner-tow hook, which resulted in it becoming entangled between the left elevator and horizontal stabilizer, restricted the movement of the elevator, and led to a loss of airplane control. 1
The pilot's loss of control while landing with a crosswind. Contributing to the accident was the pilot lack of experience flying in similar weather conditions. 1
The pilot’s failure to ensure the airplane maintained adequate airspeed during the initial climb and the subsequent exceedance of its critical angle of attack, which resulted in an aerodynamic stall. Contributing to the accident were the pilot’s impairment due to a sedating antihistamine, which led to his decision to possibly allow the passenger to attempt the takeoff, and his delayed remedial action to lower the nose when the airplane began to pitch up too much.\r\n
\r 1
The loss of engine power during takeoff due to a malfunction of the engine-driven fuel pump. \r\n\r 1
The pilot’s failure to maintain adequate airspeed, which led to the airplane exceeding its critical angle-of-attack and experiencing a stall/spin.\r 1
A loss of engine power due to fuel exhaustion as a result of the pilot's misjudgment of the amount of fuel onboard prior to flight. 1
the airplanes collision with geese during the takeoff roll. 1
The pilot’s improper runway selection, which resulted in a tailwind landing, and his subsequent failure to maintain directional control.\r 1
The pilot’s excessive landing speed, which resulted in a runway excursion and noseover. Contributing to the accident was a partial loss of engine power during an attempted go-around for reasons that could not be determined because no anomalies were identified during postaccident examination.\r 1
The student pilot failed to maintain directional control while landing with a crosswind. 1
A collapse of the nose landing gear for reasons that could not be determined based on the available information. \r 1
The pilot receiving instruction’s failure to maintain directional control during the takeoff roll. Contributing to the accident was the flight instructor not having access to brake controls, which limited his ability to regain directional control at slower ground speeds.\r 1
The pilot's failure to maintain directional control during takeoff, resulting in a runway excursion and collision with trees. 1
The pilot/mechanic’s failure to properly perform required inspections of the main rotor blades at the necessary intervals, which resulted in an in-flight separation of a main rotor blade due to disbonding and fatigue cracking. Contributing to the accident was the lack of clear guidance in the helicopter maintenance inspection instructions, which allowed for the possible misinterpretation by maintenance personnel of their intent.\r 1
A loss of engine power due to an inoperative magneto and possible carburetor ice, which resulted in a forced landing into unsuitable terrain. Contributing to the accident was an inadequate magneto overhaul by unknown personnel and the modification to the carburetor heat system. \r 1
A total loss of engine power for reasons that could not be determined because the engine was not recovered. Contributing to the accident was the pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during the forced landing attempt, which resulted in an aerodynamic stall and impact with terrain. 1
The pilot's failure to maintain a proper decent rate and path, which resulted in a hard landing and dynamic rollover. Contributing to the accident was the pilot's impairment by a sedating medication.\r\n\r 1
The pilot's improper engine mixture setting which reduced available engine power, and his inadvertent retraction of flaps which resulted in an impact with crops and terrain. 1
The pilot's failure to maintain directional control during a go-around in gusty crosswind conditions. 1
A collision with terrain during the landing approach for reasons that could not be determined based on available information.\r 1
The airplane flight crew’s failure to exercise the necessary vigilance and precautions and yield the right of way to the landing helicopter, which resulted in the airplane colliding with the helicopter. Contributing to the accident was the helicopter pilot’s decision to continue his descent without positively determining that the airplane did not pose a collision hazard.
\r 1
The total loss of engine power due to water contamination of the fuel, which resulted in the pilot's forced landing and impact with terrain. Contributing to the accident was the pilot's decision to operate the helicopter without resolving the fuel contamination. 1
A partial blockage of the No. 2 bearing oil nozzle jet by bearing material, which resulted in oil starvation and the subsequent failure of the No. 2 bearing and total loss of engine power.\r 1
The hard landing after both burner pilot lights extinguished during the landing approach. Contributing to the accident was the pilot's inability to relight the burner pilot lights. \r\n\r\n\r\n\r 1
A partial loss of engine power due to the failure of the No. 2 engine accessory gearbox bearing for reasons that could not be determined based on the available information.\r\n\r 1
The pilot’s decision to begin a flight with fog and low clouds present at the airport, which resulted in an encounter with instrument meteorological conditions immediately after takeoff and a controlled flight into terrain. \r 1
A complete loss of engine power during climb for reasons that could not be determined due to the severity of postcrash fire damage to the airplane.\r 1
The pilot's attempt to depart on an unpaved road, which he mistook for the unpaved runway. Contributing to the accident was the fact that the road and the runway were conjoined for the first few hundred feet of the runway. 1
An in-flight collision with a bird while on approach. 1
A total loss of engine power due to fuel contamination, which resulted from the pilot’s inadequate preflight inspection. Contributing to the accident was the operator’s failure to properly maintain the fuel storage tank.\r\n \r 1
The student pilot's improper takeoff procedure and the flight instructor's failure to take control of the airplane and abort the takeoff. 1
The pilot's decision to takeoff from a remote mountain lake in variable wind. Contributing to the accident was the pilots delayed decision to abort the takeoff. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation. Contributing to the accident was the pilot’s failure to identify occupants on the ground near the shoreline in the airplane’s forced landing path.\r 1
An in-flight fire for reasons that could not be determined due to the extent of impact and fire damage.\r 1
A total loss of engine power due to fuel starvation, which resulted from the pilot’s improper fuel management and resulted in a forced landing on unsuitable terrain. \r 1
The pilot's failure to maintain directional control during takeoff, which resulted in a collision with a tree and then obstacles during the subsequent aborted takeoff. 1
The pilot’s failure to follow the checklist while starting the engine and to lock the engine primer plunger, which resulted in the partial loss of engine power during cruise flight in high
density altitude conditions.\r\n\r 1
The landing gear’s failure to extend for reasons that could not be determined based on the available evidence.\r\n\r 1
The pilot’s failure to maintain airplane control, which resulted in subsequent impact with terrain. \r\n\r 1
The pilot's failure to maintain directional control during the landing roll in variable wind conditions, resulting in a ground-loop. 1
The student pilot's failure to initiate the decelerative flare during autorotation and the CFI's delayed remedial action, which resulted in a hard landing. 1
The total loss of engine power due to fuel starvation for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot's failure to maintain lateral control while taxiing. Contributing to the accident was the incorrect decision to takeoff once the sponson had been damaged. 1
A total loss of engine power during initial climb for reasons that could not be determined because postaccident engine examination did not reveal any preimpact failures or malfunctions that would have precluded normal operation. 1
The pilot's inadvertent visual flight into instrument meteorological conditions, which resulted in a loss of helicopter control. 1
The failure of the 2nd-stage turbine wheel due to an improper repair of the 2nd-stage stator assembly, which the manufacturer does not consider a repairable item. Contributing to the incident was the designated engineering representative's approval of the repair process. 1
The partial loss of engine power for reasons that could not be determined based on the available information.\r\n\r\n\r 1
The pilot's failure to maintain sufficient altitude while maneuvering which led to a collision with power lines. 1
The pilot's delayed action in correcting a drift to the right during landing roll and his improper use of the wheel brakes which resulted in the airplane nosing over. 1
The failure of the right main landing gear pivot assembly. Contributing to the accident was the owner's failure to perform an inspection of the assembly in accordance with the manufacturer's service bulletin. 1
The backfire of the engine and its loss of power for reasons that could not be determined based on the available evidence.\r\n\r 1
The pilot's failure to adequately monitor the environment to maintain clearance from the power pole guide wire during low level maneuvering. 1
The noninstrument-rated pilot’s inadequate preflight weather planning and subsequent inadvertent encounter with instrument meteorological conditions, which resulted in spatial disorientation and the loss of airplane control. Contributing to the accident was the pilot’s decision to continue the flight in deteriorating weather conditions.\r 1
The pilot's inadequate approach and excessive airspeed which resulted in a long landing and subsequent runway overrun onto rough terrain. 1
The pilot's decision to operate an airplane with a known deficiency and to not properly secure the airplane before hand-starting the engine. 1
The total loss of engine power due to an anomaly with the carburetor system that could not be determined during postaccident examination. 1
The loss of engine power during cruise flight for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation.\r 1
The pilot’s failure to maintain adequate airspeed for the airplane’s configuration and flight profile, which resulted in an exceedance of the wing’s critical angle-of-attack and a subsequent aerodynamic stall/spin. \r\n\r 1
The pilot's failure to maintain aircraft control and proper alignment during approach for landing in gusting wind conditions. 1
The pilot’s inadvertent application of excessive brake pressure during landing on a rough surface, which resulted in a nose-over. \r 1
A partial loss of engine power, which resulted in a forced landing on unsuitable terrain. The reason for the loss of engine power could not be determined during postaccident examination.\r 1
The pilot's misjudgment of speed and distance on final approach resulting in a touchdown near the departure end of the runway, a runway excursion, and collision with trees. 1
The pilot's failure to ensure adequate clearance from ground obstacles during takeoff which resulted in loss of aircraft control. 1
The pilot's loss of airplane control following a loss of engine power for reasons that could not be determined based on the available evidence. \r\n\r 1
The pilot’s failure to maintain adequate airspeed and his exceedance the airplane’s critical angle-of
attack while maneuvering through a canyon in high-density altitude conditions at low altitude, which resulted in an aerodynamic stall.\r 1
The airplane’s vertical descent into water for reasons that could not be determined because postaccident airplane examinations revealed no mechanical anomalies. \r 1
The pilot's improper recovery from a bounced landing. Contributing to the accident was the deer on the runway and the pilot's mismanagement of airspeed which resulted in an aerodynamic stall. 1
The pilot's inadequate preflight and inflight planning and improper landing site selection and approach path, which resulted in the balloon contacting powerlines during landing. Contributing to the accident was the Federal Aviation Administration's inadequate oversight of balloon tour operators. 1
The pilot's loss of directional control while landing in gusty crosswind conditions. Contributing to the accident was the pilot's operation of the engine above its normal temperature limit on takeoff. 1
The pilot’s improper recovery from a bounced landing.\r\n\r 1
The pilot's failure to maintain airplane control when the airplane encountered high gusting wind while conducting low altitude flight in a narrow canyon, which resulted in an inflight collision with terrain. 1
The pilot's inadequate preflight performance planning and his operation of the airplane outside of the manufacturer's specified performance limitations, which resulted in his exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall/spin. 1
The pilot's failure to maintain aircraft control during takeoff roll in variable wind conditions. 1
The fatigue fracture of an engine connecting rod, which resulted in a catastrophic engine failure and a forced landing in unsuitable terrain.\r\n\r\n \r\n\r 1
The pilot’s failure to maintain directional control during the landing due to his decision to attempt a landing with a quartering tailwind, which resulted in a ground loop and impact with the runway surface.\r 1
The pilot's failure to maintain adequate clearance from obstructions while on approach to the runway. 1
The passenger's inadvertent interference with the rudder controls during the takeoff. 1
A total loss of engine power during cruise for reasons that could not be determined based on the available information. Contributing to the accident was the pilot’s loss of control during the forced landing. \r 1
The total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s inadequate fuel planning.\r 1
The pilot receiving instruction's inability to respond to or compensate for the sudden change in wind direction and speed that the airplane encountered shortly after liftoff, which resulted in a tailwind condition, a corresponding decrease in airspeed, and a reduced climb gradient. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack while climbing to avoid terrain while operating at a high density altitude, which resulted in a stall at too low an altitude to allow recovery. \r\n\r 1
The flight instructor’s failure to adequately supervise the student pilot and his decision to conduct training in an airplane without dual brakes, which resulted in the student pilot’s loss of directional control during initial taxi and subsequent impact with another airplane. \r 1
The pilot's misjudgment of speed and distance on final approach during a precautionary landing, resulting in a touchdown off the departure end of the runway and collision with terrain. A factor in the accident was a partial loss of engine power for reasons that could not be determined in post accident testing. 1
Debris in the fuel system, which resulted in fuel starvation and a subsequent loss of engine power. \r\n\r 1
The pilot's attempt to maneuver away from power lines during a forced landing, which resulted in a collision with a tree and a fence. 1
The pilot's inadequate compensation for wind conditions, which resulted in a hard landing. 1
The pilot's improper flare, which resulted in a bounced landing and subsequent loss of aircraft control. 1
The pilot did not maintain adequate airspeed while flying a visual pattern, which resulted in an aerodynamic stall and subsequent loss of control. 1
A loss of engine power due to the malfunction of the No. 4 cylinder intake valve. 1
The pilot's failure to maintain an adequate approach which resulted in a long landing and runway overrun. 1
The pilot's failure to ensure the airplane was configured for takeoff. 1
The pilot’s failure to properly manage the airplane’s fuel supply, which led to fuel starvation and a total loss of engine power.\r 1
The noninstrument-rated pilot’s inadequate preflight weather planning and his improper decision to attempt a visual flight rules flight in night instrument metrological conditions, which resulted in subsequent collision with terrain.\r 1
A loss of engine power due to fuel starvation as a result of the pilot's failure to open the fuel shutoff valves for each fuel tank before takeoff. 1
The pilot’s inability to maintain a climb while attempting to cross over a mountain pass in high-density altitude conditions that degraded the airplane’s climb performance. Contributing to the accident was the pilot’s decision to attempt the flight in mountainous terrain and to enter the pass in such a way that an escape maneuver was not possible.\r 1
The noninstrument-rated pilot’s inadvertent entry into instrument meteorological conditions, which resulted in his spatial disorientation and the subsequent loss of airplane control. 1
The pilot's decision to favor the right side of the relatively narrow turf runway while landing, resulting in inadvertent contact with tall grass and a berm. 1
Failure of the tow bar shear pin, which resulted in the tug operator’s loss of control of the airplane during pushback operations. Contributing to the accident was the tug operator’s inability to communicate to the flight crew to apply the airplane’s brakes. \r 1
The flight instructor/pilot's failure to recover from a bounced landing, which resulted in a hard landing and the subsequent collapse of the nose landing gear. Contributing to the accident was the flight instructor's lack of total experience in the make and model of the accident airplane. 1
A loss of engine power during initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.\r 1
A partial loss of engine power during initial climb for reasons that could not be determined due to the severity of the damage to the engine.\r 1
A partial loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.\r 1
A partial loss of engine power for undetermined reasons which resulted in a landing gear collapse during the precautionary landing to a field. \r 1
The pilot’s improper decision to operate an unairworthy helicopter, which resulted in a loss of control and subsequent impact with terrain. \r\n \r 1
The pilot's impairment due to alcohol consumption, which resulted in his failure to maintain clearance from trees. 1
The pilot's improper recovery from a bounced landing in gusty, crosswind conditions. Contributing to the accident was the pilot lack of recent tail wheel landing experience. 1
The noncertificated pilot’s failure to maintain airplane control after an inadvertent takeoff, which resulted in collision with terrain.\r 1
The student pilot's failure to initiate a go-around sooner, and his failure to maintain directional control. 1
The pilot’s inadequate preflight inspection that did not detect that the bulk fuel tank was full and led to an unanticipated heavy airplane weight and his failure to use the entire soft, wet, and muddy airstrip length for takeoff, which resulted in a takeoff overrun.\r\n\r 1
The inadvertent aerodynamic stall during landing in crosswind conditions. 1
The pilot's inadequate survey of the aerial application field which resulted in a collision with a windmill. 1
\r\nThe pilot’s loss of airplane control during takeoff after encountering rapidly changing wind conditions.\r\n\r 1
A total loss of engine power, which resulted from fuel exhaustion due to the pilot’s failure to adequately monitor the fuel quantity during the flight.\r\n\r 1
The pilot's failure to establish a stabilized approach and to maintain airspeed during final approach over obstacles resulting in a stall/mush. 1
The pilot's failure to maintain directional control during taxi. 1
the first officer's failure to maintain the correct airspeed and pitch attitude during landing that resulted in a tailstrike. 1
The pilot's distraction by a cell phone call, which led to his failure to perform an exterior check of the helicopter and resulted in a tie-down strap remaining attached to the main rotor during the engine start. \r\n\r\n \r\n\r 1
The pilot's failure to achieve climb performance and maintain sufficient airspeed during a go-around, which led to the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's failure to retract the landing gear in accordance with the go-around checklist.\r\n\r\n\r\n\r\n\r\n\r 1
The pilot’s failure to maintain airplane control during landing while the air traffic controller was simultaneously coordinating the landing of three airplanes on the same runway, which resulted in the airplane exiting the runway and impacting a parked ground vehicle. \r 1
A total loss of engine power for reasons that could not be determined due to postcrash fire damage. \r 1
The nose landing gear collapse for reasons that could not be determined because examination of the airplane revealed no anomalies. \r 1
The pilot did not ensure sufficient obstacle clearance for potential wind conditions, which resulted in his loss of control of the helicopter. 1
The pilot's loss of directional control during landing, resulting in a runway excursion and the airplane nosing over. 1
The non-certificated pilot's failure to maintain directional control while performing a high speed taxi test and inadvertent lift-off, which resulted in an inflight collision with trees and terrain. 1
The pilot's excessive braking on landing, which resulted in a loss of control. 1
The pilot failed to maintain directional control during landing. 1
The pilot's loss of helicopter control due to settling with power while maneuvering for takeoff.\r 1
The pilot's failure to maintain clearance from power lines while maneuvering during low-altitude operations. 1
The fuel flow divider inlet line’s B-nut coming loose during takeoff, resulting in a total loss of engine power. Contributing to the accident was the pilot's failure to adequately tighten the B-nut during recent maintenance. 1
The partial loss of engine power for a reason that could not be determined because of extensive impact and postcrash fire damage, and the pilot's failure to maintain adequate airspeed, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall/spin.\r\n\r 1
The failure of the retaining assembly on the tail rotor blade, which resulted in the separation of the blade and the subsequent loss of helicopter control.\r 1
A total loss of engine power for reasons that could not be determined during postaccident examination and testing.\r 1
The pilot's inadequate landing technique that resulted in a landing area overrun. Contributing was the glassy water conditions. 1
The student rated pilot's inadvertent flight control input resulting in a ground loop and substantial damage to the right wing. 1
The pilot’s failure to maintain directional control during initial climb following a banner pick-up, resulting in collision with a tree. \r\n\r 1
The pilot's failure to maintain a proper glide path and airspeed on final approach, which resulted in a long landing and runway excursion. 1
The pilot's inadequate compensation for the wind conditions and failure to maintain aircraft control during taxi, which resulted in a loss of tail rotor effectiveness and subsequent impact with the taxiway and a parked fuel truck. 1
The pilot's failure to see and avoid power lines while maneuvering low to the ground, which resulted in a collision and loss of control. 1
The pilot's excessive taxi speed, which resulted in a loss of control. 1
The pilot's decision to takeoff from a field which resulted in a collision with trees and the ground. Contributing to the accident was the pilot's failure to correctly identify the destination airport and runway, which resulted in an off-airport landing in the field. 1
The loss of right engine power while climbing due to fuel starvation for reasons that could not be determined during postaccident airplane examination and testing, which led to a forced landing on hilly terrain. 1
Undetermined based on a lack of available information. 1
The loss of engine power during cruise flight due to a fatigue fracture of the crankshaft, which resulted in a forced landing on unsuitable terrain.\r\n\r 1
A loss of engine power due to fuel exhaustion, which resulted from the pilot’s inadequate preflight fuel planning.\r 1
The pilot's failure to maintain aircraft control during the final approach in turbulent conditions, which resulted in a collision with water. 1
The loss of braking action during the landing roll on a gravel runway for reasons that could not be determined based on the available information. \r 1
The separation of a section of a propeller blade due to fatigue cracking. Contributing to the accident was the operator’s failure to comply with the manufacturer’s maintenance and inspection instructions. \r 1
The failure of the rudder cable due to tension overstress as a result of the cable’s strength being compromised by wear damage, which resulted in the flight instructor’s inability to maintain directional control during the landing roll. \r 1
The pilot's improper fuel management, which resulted in the total loss of power to both engines due to fuel exhaustion and the subsequent forced landing in a field. Also causal to the accident was the pilot's decision to use the slower emergency hand-pump to extend the landing gear instead of the available carbon-dioxide blowdown system, which resulted in a landing without the landing gear fully extended. 1
The loss of airplane control for reasons that could not be determined by the postaccident examination, which was limited due to impact damage and postcrash fire. 1
Failure of maintenance personnel to ensure adequate torque of a pneumatic control pipe (P2) fitting, which resulted in a loss of engine power during low altitude flight maneuvers.\r 1
Maintenance personnel’s and the airplane owner’s failure to inspect the engine for cracks in the cylinders as required by an airworthiness directive, which resulted in the loss of engine power during low-altitude maneuvering flight.\r 1
An inflight collision with a goose while descending to land at the destination airport. 1
The pilot’s failure to properly manage the fuel supply, which resulted in a total loss of engine power due to fuel starvation. \r 1
A total loss of engine power for reasons that could not be determined, because post accident examination did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation. 1
The pilot's failure to maintain directional control during landing rollout in gusty crosswind conditions, which resulted in a ground loop and subsequent substantial damage to the airplane. 1
The pilot’s failure to maintain directional control while landing with a crosswind, which resulted in a ground loop and a subsequent runway excursion.\r\n\r 1
An in-flight bird strike. 1
The pilot's failure to maintain adequate airspeed during the approach for landing, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall/spin at an altitude too low for recovery. 1
The pilot's failure to maintain lateral control of the airplane after a reduction in left engine power and his application of inappropriate rudder input. Contributing to the accident was the pilot's failure to follow the emergency procedures for an engine failure during takeoff. Also contributing to the accident was the left engine power reduction for reasons that could not be determined because a postaccident examination did not reveal any anomalies that would have precluded normal operation and thermal damage precluded a complete examination. 1
The failure of the student pilot to achieve a proper touchdown during a touch-and-go landing resulting in a hard landing and substantial damage. 1
The student pilot's relaxing of elevator back pressure during the landing roll that induced a porpoise, loss of control, and collapsing of the nose wheel. 1
Scaled Composites' failure to consider and protect against the possibility that a single human error could result in a catastrophic hazard to the SpaceShipTwo vehicle. This failure set the stage for the copilot's premature unlocking of the feather system as a result of time pressure and vibration and loads that he had not recently experienced, which led to uncommanded feather extension and the subsequent aerodynamic overload and in-flight breakup of the vehicle. 1
A loss of engine power during cruise flight due to the failure of the No. 6 connecting rod, which resulted from oil starvation. \r 1
The student pilot's failure to compensate for gusting wind conditions during the flare, and the flight instructor's failure to intervene in a timely manner, resulting in a loss of airplane control and hard landing off of the runway. 1
The pilot's loss of control while landing the tailwheel-equipped airplane in gusting wind conditions, which resulted in a ground loop. 1
Loss of engine power due to fuel starvation as a result of the pilot's failure to properly operate the fuel selector valve. 1
A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.\r 1
The airplane's encounter with supercooled large droplet (SLD) icing, which resulted in a loss of lift and a subsequent uncontrolled descent into terrain. Also causal was the pilot's preflight and in-flight decision to fly in known icing conditions in an airplane that was not certified to do so. 1
The pilot's failure to maintain airspeed while maneuvering in gusting wind conditions, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. \r\n 1
The pilot's failure to maintain directional control while landing in variable wind conditions, resulting in a runway excursion and collision with an object. 1
The pilot's decision to conduct a landing to a confined area in high wind conditions, which resulted in a hard landing and subsequent injury to a passenger. 1
The pilot's improper approach to landing and his failure to perform a go-around, which resulted in a runway overshoot, runway excursion, and collision with vegetation and water. 1
The pilot's inadequate monitoring of the airplane's approach path which resulted in long landing and a subsequent runway excursion. Contributing to the accident was the pilot's delayed decision to apply the brakes, inflight traffic, and nearby pedestrians. 1
A catastrophic and uncontained engine failure due to oil starvation. Contributing to the accident was the missing No. 3 cylinder intake rocker cover for reasons that could not be determined based on the available evidence.\r 1
The loss of directional control during the takeoff roll for reasons that could not be determined during postaccident examinations and testing.\r\n\r 1
The pilot’s failure to maintain directional control while attempting to drag an off-airport landing site.\r\n\r 1
The failure of the seat track mechanism, which led the pilot to inadvertently apply aft yoke and lift his feet off the rudder pedals and resulted in a loss of directional control during takeoff. 1
The pilot's failure to maintain airspeed after takeoff, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall/spin at low altitude. Contributing to the accident was the airplane's reduced climb performance due to a carbon-fouled engine cylinder, the airplane's lack of wheel pants and fairings, and the high density altitude conditions. \r\n\r 1
The pilot's failure to maintain clearance with a parked truck while taxiing for takeoff. 1
The pilot's loss of airplane control while turning onto the base leg of the traffic pattern due to his failure to maintain sufficient speed and/or overbanking, which resulted in the airplane impacting trees. Contributing to the pilot's fatal injuries was his fall from a tree after exiting the airplane.\r\n\r 1
The glider pilot’s failure to avoid the tow plane after the aborted takeoff due to both pilots’ failure to review the aborted takeoff procedure before the flight, which led to both pilots turning right after the aborted takeoff.\r 1
The pilots' failure to maintain adequate airspeed during climb, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. Contributing to the accident was the flight instructor's decision to conduct a training flight in an airplane equipped with a single throw-over-type control wheel.\r\n\r 1
The partial loss of engine power during takeoff for reasons that could not be determined because postaccident engine examinations revealed no anomalies that would have precluded normal operation.\r 1
A cell blowout in the fabric wing, which resulted in an asymmetrical loss of lift and a subsequent loss of aircraft control. \r 1
Maintenance personnel's improper tightening of the crankcase through bolt nuts during reassembly of the engine at the last overhaul, which resulted in the failure of the crankshaft and the subsequent total loss of engine power. 1
The failure of the helicopter pilots and the airplane pilot to maintain an adequate visual lookout for known traffic in the traffic pattern, which resulted in a midair collision. Contributing to the accident were the airplane pilot's descent below the published airplane traffic pattern altitude (TPA) and the helicopter pilot's climb above the proper helicopter TPA as prescribed in the Federal Aviation Administration's Aeronautical Information Manual for airports without published helicopter TPAs. Also contributing to the accident were the lack of a published helicopter TPA, the absence of radar equipment in the tower, and the controller's inadequate task prioritization. 1
the B757 Captain's failure to maintain a safe clearance between his wing and the wingtip of the ERJ-170. Contributing to the accident was the positioning of the ERJ-170 by the Compass ground personnel. 1
The total loss of engine power during the initial climb due to fuel starvation for reasons that could not be determined because postaccident examinations of the airframe and engine fuel system components revealed no evidence of a mechanical malfunction or failure. 1
The failure of the nose gear tire, which resulted in the vibration of the nose landing gear and subsequent fire to the tire and forward section of the fuselage structure. 1
The pilot's improper flare which resulted in a loss of aircraft control and subsequent hard landing. 1
The flight crew's failure to ensure that the sliding cabin door was properly secured before the flight. 1
The pilot's exceedance of the airplane's critical angle of attack during the landing, which resulted in an inadvertent aerodynamic stall, a hard landing, and a nose over. 1
The failure of the left main landing gear to extend, which resulted in a gear-up landing. The reason for the left main landing gear’s failure to operate normally could not be determined because postincident examination of the landing gear system did not reveal any anomalies that would have precluded normal operation.\r 1
The separation of the main crank drive pulley from the engine’s accessory section due to three of its securing bolts backing out of their holes, which subsequently resulted in two accessory belts becoming unsecure, both crank sensor plugs becoming dislodged, the ignition source to the engine being interrupted, and the total loss of engine losing total power. \r 1
The pilot's failure to maintain clearance from trees while maneuvering. 1
The pilots' failure to recover from a spin for reasons that could not be determined based on available information. Contributing to the student's fatal injury was his delayed egress from the airplane below the specified egression altitude. 1
The pilot’s impairment due to the ingestion of alcohol and sedating medications, which led to her improper decision to conduct low-level flight, affected her ability to safety operate the airplane, and resulted in her failure to maintain clearance from power lines. \r 1
The non-instrument rated pilot’s continued visual flight into instrument flight rules conditions, which resulted in an in-flight loss of control.\r 1
The student pilots improper landing flare which resulted in a hard landing and loss of aircraft control. Contributing to the accident was the flight instructor's delayed remedial actions. 1
The private pilot's premature landing flare and the flight instructor's delayed remedial action, which resulted in a hard landing. 1
The pilot's failure to ensure that the landing gear was fully extended in the down and locked position prior to touchdown, which resulted in the left main landing gear collapse, runway excursion, and impact with a runway exit sign. 1
A total loss of engine power for reasons that could not be determined during postaccident examinations and testing. \r\n\r 1
The failure of the landing gear actuator housing during landing for reasons that could not be determined based on the available evidence.\r 1
The flight instructor’s decision to conduct a night training flight in mountainous terrain without conducting or allowing the student to conduct appropriate preflight planning and his lack of situational awareness of the surrounding terrain altitude, which resulted in controlled flight into terrain. 1
The pilot’s failure to maintain clearance from power lines while flying at a low altitude.
Contributing to the accident was the obscuration of the pilot’s visibility due to sun glare.\r 1
The pilot’s failure to maintain adequate clearance from trees during a precautionary landing. Contributing to the accident was the pilot’s inadequate preflight inspection during which he failed to detect a loose drive belt, which resulted in an in-flight shudder. \r\n\r 1
The pilot’s failure to maintain airplane control, which resulted in a stall/spin. Contributing to the accident was the pilot’s failure to obtain adequate familiarization in the accident airplane type before the accident.\r 1
The collapse of the left main landing gear for reasons that could not be determined during postaccident examination.\r 1
A loss of tail rotor effectiveness while hovering in gusting crosswind conditions resulting in the student pilot's loss of control of the helicopter. Contributing was the delayed remedial action of the flight instructor. 1
an inadvertent encounter with clear air turbulence while the flight attendants were returning to their seats. 1
The student pilot's loss of airplane control during the landing flare in gusting wind conditions. 1
The pilot's inadvertent selection of an incorrect frequency, which resulted in his inability to activate the airport lighting, and his subsequent decision to continue the approach in dark night conditions despite having not positively identified the runway environment. 1
The pilot's inability to identify the power line during the initial approach in night visual meteorological conditions and his subsequent failure to avoid the power line once he identified it on final approach. 1
The total loss of engine power due to carburetor icing, which resulted from the pilot’s failure to use carburetor heat while operating at low-power settings in an area conducive to carburetor icing.\r 1
The pilot's failure to maintain airplane control while maneuvering, which resulted in a collision with mountainous terrain. \r\n\r\n \r\n\r 1
The loss of airplane control after encountering windshear. 1
The pilot’s improper decision to descend the airplane at an airspeed greater than the published best glide speed following an erroneous oil pressure indication, which resulted in an off-airport landing. Contributing to the erroneous oil pressure indication was the faulty oil pressure transducer. Contributing to the severity of the accident was the pilot’s late deployment of the ballistic parachute system.\r 1
The pilot’s inadequate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The partial loss of engine power during climb after takeoff for a reasons that could not be determined because postaccident engine examination revealed no evidence of mechanical malfunctions or failures.\r 1
The pilot’s failure to maintain airspeed during the final approach, which resulted in a stall/mush. Contributing to the accident was the pilot’s failure to obtain training in the pusher-type airplane.\r\n\r 1
The pilot's failure to maintain adequate airspeed during a forced landing following a total loss of engine power due to fuel starvation, which resulted in the airplane exceeding its critical angle of attack, and an aerodynamic stall at a low altitude. Contributing to the accident was the pilot’s improper fuel management. 1
A loss of airplane control for reasons that could not be determined based on available evidence. 1
The pilot's failure to maintain adequate altitude while landing in gusty wind conditions, which resulted in a collision with power lines while on final approach. 1
A loss of engine power during takeoff due to excessive debris in the fuel system. \r 1
The pilot's failure to maintain directional control during landing with a gusting crosswind, which resulted in a hard landing adjacent to the runway. 1
The noninstrument-rated pilot's improper decision to attempt visual flight in instrument meteorological conditions, which resulted in an in-flight loss of airplane control due to spatial disorientation. Contributing to the accident was the pilot’s impaired decision-making due to the effects of ethanol and chlordiazepoxide. 1
The pilot/mechanic's failure to properly secure the pitch link hardware of one main rotor blade to the rotating swash plate, which resulted in the pitch link separating in flight and a subsequent loss of control. 1
The total loss of engine power during takeoff following a touch-and-go landing for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot's improper recovery from a bounced landing during gusty crosswind conditions. 1
The loss of engine power due to fuel exhaustion, which resulted from the non-certificated pilot's inadequate preflight planning and inflight decision making. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and encounter with terrain. 1
Maintenance personnel’s inadequate inspection of the No. 2 cylinder valve area during the most recent annual inspection, which resulted in the in-flight failure of the intake valve springs due to rust on the spring surfaces and subsequent fatigue cracking.\r 1
The student pilot’s failure to comprehend the significance of the wake turbulence that a preceding helicopter would generate during departure, which resulted in a loss of airplane control during landing. Contributing to the accident was the lack of Federal Aviation Administration wake turbulence separation criteria for a small airplane following a helicopter.\r\n\r 1
The student pilot’s failure to maintain clearance from a wire during an off-airport landing following a partial loss of engine power for reasons that could not be determined during postaccident examination.\r\n\r 1
A total loss of engine power to both engines during descent due to fuel starvation as a result of an interruption of the fuel flow, which resulted in a forced landing to a short strip and a subsequent overrun. 1
The pilot's loss of directional control while landing in gusting crosswind conditions, which exceeded the airplane's maximum demonstrated crosswind velocity. 1
The pilot's failure to maintain airplane control during the landing flare with a crosswind. 1
The failure of the gust lock actuator solenoid for reasons that could not be determined because postaccident examination of the rudder gust lock system revealed no mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot's inadequate fuel planning and improper fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's failure to follow proper procedures in response to the loss of engine power.\r 1
The pilot's failure to maintain airspeed while maneuvering, which resulted in the airplane exceeding its critical angle
of
attack and experiencing an aerodynamic stall. Contributing to the accident were abnormal engine operation due to improper magneto-to-engine ignition timing and the pilot's failure to have the airplane inspected before the flight as required by the special flight permit. 1
Unintentional collision with a deer at night. 1
Engine power surges during takeoff for reasons that could not be determined during postaccident testing of the engine and the engine control unit. 1
The student pilot's failure to maintain airplane control during the initial climb, resulting in a runway excursion and substantial damage to the engine firewall. The student pilot's lack of overall flying experience was a factor. 1
The noninstrument-rated pilot's decision to initiate the flight into known deteriorating weather conditions and his continued visual flight into instrument meteorological conditions, which ultimately resulted in a loss of airplane control. Contributing to the accident was the air traffic controller's failure to provide additional assistance to the pilot when it was apparent the pilot was having difficulties. 1
The flight instructor's delayed reaction in taking control of the helicopter during a student pilot's loss of control while landing. 1
A loss of directional control during landing for reasons that could not be determined based on the available information.\r 1
The airplane's collision with water for reasons that could not be determined because the wreckage was not located. 1
The pilot's failure to maintain directional control of the airplane during takeoff roll. 1
The pilot's loss of directional control during the landing roll for reasons that could not be determined, because postaccident examination of the nosewheel assembly revealed no anomalies that would have precluded normal operation. 1
The certified flight instructor's failure to maintain helicopter control during the autorotation which resulted in a hard landing and subsequent roll over. 1
The partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preimpact mechanical anomalies.\r 1
The pilot’s failure to maintain airspeed while maneuvering, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall at an insufficient altitude to fully recover before collision with obstacles and terrain.\r 1
The noninstrument-rated pilot's improper decision to fly to the destination airport and into known instrument meteorological conditions, which resulted in his controlled flight into mountainous terrain during a snow storm.\r\n\r 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack for reasons that could not be determined based on the available evidence, which resulted in an aerodynamic stall/spin. Contributing to the accident was the improperly installed oil gauge housing extension, which resulted in a loss of oil quantity and right engine power. 1
The student pilot's improper flare which resulted in a hard landing and subsequent nose gear collapse. 1
The student pilot's failure to maintain directional control and the flight instructor's delayed remedial action during landing. Contributing was the snow on the runway surface. 1
The pilot's failure to maintain control of the balloon when the wind unexpectedly increased which resulted in a collision with trees during the landing. 1
A failure of the right engine magneto distributor drive gears, which resulted in a total loss of engine power during takeoff. Contributing to the accident was the operator’s failure to inspect and maintain the magnetos in accordance with the engine manufacturer’s specifications. \r 1
The pilot's failure to maintain airspeed while attempting to return to the airport after a reported engine problem, which resulted in an aerodynamic stall/spin. 1
An undetermined pilot's failure to maintain clearance from an electrical transmission tower resulting in substantial damage to a main rotor blade. Postaccident investigation could not determine which of two pilots was flying the helicopter at the time the damage occurred. 1
The pilot’s improper decision to land long (past the midpoint) on a wet runway and his failure to conduct a go-around when the airplane did not touch down at the approach end of the runway, which resulted in an overrun. \r\n\r 1
The pilot's failure to properly set the throttle prior to engine start, which resulted in a loss of control and collision with a hangar. 1
N263WN captain's failure to maintain a safe clearance from the parked N8314L resulting in a ground collision. 1
A loss of engine power for reasons that could not be determined due to extensive damage sustained during the collision and postaccident water immersion. \r 1
The exhaustion of the fuel supply resulting in a complete loss of engine power. 1
The pilot's engagement of the emergency parking brake during the landing roll, which decreased the airplane's braking performance and prevented it from stopping on the available runway. Contributing to the pilot's decision to engage the emergency parking brake was the expectation of a faster rate of deceleration and considerably shorter wet runway landing distance provided by the airplane flight manual than that experienced by the crew upon touchdown and an actual wet runway friction level lower than the assumed runway fiction level used in the calculation of the stopping distances published in the airplane flight manual.\r\n\r 1
The pilot inadvertently applied the left brake during the landing roll which resulted in a loss of directional control and subsequent impact with terrain. 1
A partial loss of engine power during the initial climb for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
The student pilot's inadvertent interference with the weight-shift capability of the airplane during the initial climb, resulting in a loss of airplane control and hard landing. 1
A partial loss of engine power due to water contamination of the fuel. \r\n\r\n\r 1
The second-in-command's (SIC) engagement of the emergency parking brake (EPB), which decreased the airplane's braking performance and prevented it from stopping on the available runway. Contributing to the SIC's decision to engage the EPB was the lower-than-anticipated deceleration due to a wet-runway friction level that was far lower than the levels used to determine the wet-runway stopping distances in the Airplane Flight Manual (AFM) and necessitated a landing distance considerably greater than that published in the AFM. 1
The pilot’s failure to recover from a stall, which resulted in a subsequent spin from which he did not recover because he did not immediately apply the proper stall and spin recovery techniques.\r\n\r 1
The fatigue fracture of the No. 3 exhaust valve, which initiated at the outer surface of the valve stem and resulted in the subsequent total loss of engine power over terrain unsuitable for landing. 1
The flight instructor’s delayed remedial action and his subsequent loss of directional control during landing on a wet runway for reasons that could not be determined because postaccident examination of the airplane revealed no anomalies. \r\n\r 1
The failure of both pilots to maintain directional control during landing. 1
The pilot's selection of an unsuitable landing/takeoff area, resulting in an inflight collision with terrain during takeoff. 1
The pilot’s poor decision to take off with the clutch warning light illuminated, which resulted in the total failure of the fan assembly due to a lack of lubrication. Contributing to the accident was the mechanic’s failure to lubricate the lower actuator bearing at the last annual inspection.\r\n \r 1
A loss of engine power during takeoff for reasons that could not be determined based on the available information.\r 1
The failure of the flying pilot to maintain airplane control after an aerodynamic stall/spin occurred during the aerobatic maneuver following a reported intermittent loss of engine power for reasons that could not be determined during postaccident examinations.\r 1
The pilot's failure to maintain aircraft control during takeoff from a rough runway surface which resulted in an off-airport forced landing just beyond the runway. 1
The pilot's inadequate landing flare and failure to maintain aircraft control during landing. 1
The pilot's failure to maintain a directional control of the airplane during gusting wind conditions. 1
The pilot's inadequate preflight planning, which resulted in a takeoff with the airplane's center of gravity aft of its limit and led the airplane to exceed its critical angle of attack and experience an aerodynamic stall during the initial climb. Contributing to the accident was the pilot's lack of flight experience in the aircraft make and model. 1
A loss of lift during the landing approach, which resulted in impact with terrain. 1
The failure of the flight control rod bearing due to an undetected preexisting corrosion-induced crack, which resulted in the main rotor blades going to full pitch and the rotor mast folding; this allowed the pusher propeller to strike and sever the tail. \r 1
The pilot’s failure to maintain a positive climb rate after takeoff in dark, night conditions, which resulted in his controlled flight into terrain due to the lack of ground references or natural horizon.\r 1
\r\n\r\nTurbine Overhaul Service's aggressive grit blasting and incomplete masking of the blade root neck that allowed the no grit blast area being exposed during the overhaul of the blade resulting in blasting media being embedded in the blade root from which a fatigue crack developed. The fatigue crack propagated until separation of the blade occurred that resulted in a complete loss of engine power. The fire was caused by the B-nut on the hydraulic line from the fuel pump and pulsation damper loosening from engine vibration after the compressor blade separated spraying high pressure fluid into the engine compartment that ignited on the hot engine cases. 1
A partial loss of engine power for reasons that could not be determined because engine examination did not reveal any anomalies that would have precluded normal operation. \r 1
The pilot's incorrect engine start procedures, which included improper throttle position and failure to keep the brakes applied, which resulted in a loss of directional control and subsequent collision with a parked airplane. 1
The application of insufficient torque to the engine cylinder through bolts during the replacement of the No. 1 cylinder, which resulted in the displacement of the No. 2 bearing, oil starvation, and a catastrophic engine failure.\r 1
The flight instructor's inadequate supervision and delayed remedial action during a practice autorotation, which resulted in a tail rotor strike. 1
The pilot's failure to maintain control on landing, resulting in the collision with terrain. 1
The pilot's inadequate maintenance and preflight of the airplane which resulted in a total loss of engine power due to oil starvation. 1
The pilot's failure to maintain aircraft control during landing with a quartering tailwind, which resulted in a hard landing. 1
The pilot's inadequate fuel management which resulted in an engine failure due to fuel starvation and subsequent collision with power lines during the forced landing. 1
The pilot's improper preflight planning and reliance of fuel gauge readings, which resulted in a loss of engine power due to fuel exhaustion. 1
The pilot's failure to extend the landing gear which resulted in a gear-up landing. Contributing to the accident was the pilot's failure to use the checklist and reported stress. 1
The pilot's selection of unsuitable terrain for takeoff/landing and failure to maintain control of the aircraft. 1
Failure of the tailwheel steering assembly during maneuvering flight, which resulted in a loss of directional control during the landing roll. 1
The pilot's failure to maintain directional control during landing roll in gusty wind conditions, which resulted in a runway excursion and collision with terrain. 1
The pilot’s failure to maintain altitude while performing low-level aerobatic maneuvers, which resulted in collision with terrain. Contributing to the accident was the pilot’s improper decision to attempt aerobatics at such a low altitude. \r 1
The pilot's continued visual flight into instrument meteorological conditions, which resulted in his failure to maintain clearance with trees and terrain. 1
The pilot’s failure to maintain adequate drift control and skid clearance from the ground during takeoff, which resulted in a dynamic rollover when the aft right skid contacted a rock. \r\n\r 1
An in-flight fire for reasons that could not be determined because the examination of the airplane did not reveal the source of the fire.\r\n\r 1
The total loss of engine power for reasons that could not be determined during postaccident examination. 1
The pilot’s failure to maintain clearance from trees during an emergency landing after encountering deteriorating weather conditions. Contributing to the accident was the pilot’s poor preflight weather planning, which resulted in an inadvertent encounter with instrument meteorological conditions.\r\n\r 1
The pilot's failure to maintain sufficient clearance from trees during the single-engine landing approach. Contributing to the accident was the loss of power in the left engine due to an improperly installed rubber boot that became dislodged and was then partially sucked into the fuel injector servo, which caused an excessively rich fuel-air mixture that would not support combustion. 1
A total loss of engine power due to fuel exhaustion, which resulted from the pilots’ improper preflight and in-flight fuel planning.\r\n\r 1
The pilot did not compensate for the decrease in the crosswind when he descended below the tree line during the landing. 1
The pilot's failure to ensure adequate clearance from terrain while landing on sloped terrain. 1
A partial loss of engine power during cruise flight due to loose “B” nut fittings and a bent tube as a result of maintenance personnel’s inadequate inspection of the nuts during the most recent inspection. 1
The pilot’s use of an improper attitude and airspeed during landing followed by excessive braking, which resulted in the airplane wheelbarrowing on the runway and a subsequent loss of directional control. \r\n\r 1
The student pilot did not maintain proper airspeed during the simulated emergency landing and failed to relinquish control to the flight instructor when the flight instructor attempted to intervene, which resulted in the loss of control. Contributing was the flight instructor's failure to properly monitor the student pilot, and the poor communication between the flight instructor and student pilot. 1
The pilot's inadequate compensation for gusting wind conditions during takeoff, which resulted in the nose landing gear impacting the runway and the subsequent collapse of the nose landing gear. 1
The pilot's inability to maintain directional control of the airplane resulting in a separation of the wheel axle, resulting in a collision with terrain. 1
The pilot's improper recovery from a bounced landing, and his failure to maintain directional control of the airplane, while landing during dark night conditions. 1
The pilot’s failure to execute a missed approach after recognizing that the airplane was not aligned with the wet runway, which resulted in a long landing with a tailwind and a subsequent runway overrun. \r 1
The shearing of mounting bolts that attached the right turbocharger to its mounting bracket during an air race, which resulted in hot exhaust gases leaking into the engine compartment and starting a fire.\r 1
The pilot's failure to maintain aircraft control while landing in downdraft and gusting wind conditions which resulted in striking trees and a subsequent hard landing. 1
The tractor driver's failure to give way to the taxiing airplane. 1
The improper installation of the oil filter adapter at an unknown time, which resulted in an oil leak and subsequent oil starvation to the engine. \r 1
The pilot's failure to maintain clearance from the cart while hovering. Contributing to the accident was the failure of ground personnel to remove the cart from the helipad. 1
The student pilot's improper landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's self-induced pressure to land due to the deteriorating weather conditions. 1
A total loss of engine power due to fuel exhaustion, which resulted from the pilot’s improper preflight fuel planning and in-flight fuel management.\r 1
The fatigue failure of a propeller blade due to a propeller strike by/of an unidentified object at an unknown time.\r 1
The pilot's loss tail rotor effectiveness while attempting a taxiway side-step during landing. Contributing to the accident was another pilot's failure to ensure the runway was clear before occupying the runway for takeoff. 1
The pilot's loss of directional control during takeoff, in gusty and variable wind conditions, resulting in a collision with terrain. 1
The pilot's decision to takeoff from a rough airstrip in gusty wind conditions, which resulted in a loss of control. 1
The failure of the first officer to control the airplane pitch after touchdown. Contributing to the accident was the first officers inexperience in the aircraft type.\r\n\r 1
The pilot's loss of control during an attempted go-around following a multiple bounce landing 1
The pilot’s failure to maintain airplane control during flight, which resulted in a collision with a river.\r 1
The pilot's loss of directional control during takeoff from an off-airport site, which resulted in a collision with terrain. 1
The probable cause of the engine failure and subsequent undercowl engine fire was due to the fatigue fracture of a high pressure turbine stage 2 disk blade retaining lug that released two blades which impacted the low pressure turbine case causing a fuel line to fracture spraying fuel on the hot engine cases where it ignited. During a machining operation of the disk lug, a tool mark was introduced that set up the area for fatigue cracks to initiate. 1
The pilot's failure to properly configure the rudder trim for takeoff and his failure to maintain directional control during a precautionary landing, which resulted in a runway excursion and collision with terrain. 1
The pilot's loss of directional control due a loss of tail rotor effectiveness. 1
The pilot's failure to maintain main rotor rpm during a pinnacle approach, which resulted in a loss of helicopter control and collision with terrain. Contributing to the accident was the pilot's decision to attempt the approach given the helicopter's weight and the high-density altitude. 1
The pilot’s failure to maintain an adequate visual lookout for known traffic in the fly-in event traffic pattern, which resulted in a midair collision. 1
The A340 captain's failure to maintain adequate clearance between his wing and the tail of the EMB-145. 1
The pilot’s failure to maintain clearance from a static wire and his decision to maneuver the gyroplane at low altitude.\r 1
The pilot's failure to maintain airplane control during the landing roll out. 1
The pilot's failure to retract the landing gear after takeoff, which resulted in the landing gear contacting the water while maneuvering at low altitude. 1
The pilot's improper fuel management, which resulted in losses of power on both engines due to fuel exhaustion. 1
The pilot's failure to monitor the distance between the left wing and blast fence while maneuvering behind another airplane. 1
The pilot's failure to maintain aircraft control while on final approach with shifting wind conditions. 1
The pilots decision to land and failure to maintain control of the airplane during landing in gusty wind conditions. 1
A partial loss of engine power due to carburetor icing, which resulted from the pilot’s failure to apply carburetor heat after takeoff and during the climb. \r 1
The collision with a deer during a night takeoff. 1
A loss of aircraft control during approach for landing for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. 1
The pilot's failure to lower the landing gear. 1
The pilot did not use the departure checklist, resulting in an inadvertent landing with the pontoon wheels extended. 1
The instructor's inadequate supervision and the student's failure to maintain directional control. 1
The failure of the Savannah pilot to maintain awareness of the position of the Cessna while attempting a join up maneuver. Contributing to the accident was the impaired decision-making of the Savannah's pilot due to the combined effects of licit and illicit medications. Also contributing to the accident was the failure of the Cessna pilot to maintain awareness of the position of the Savannah as it was departing. \r\n\r 1
Maintenance personnel’s failure to apply proper torque to the cylinder flange nuts and through bolts, which resulted in shifting of the Nos. 1 and 2 main bearings, loss of lubrication, failure of the crankshaft, and a subsequent total loss of engine power. 1
Deformation of the No. 1 cylinder's intake valve, which resulted in a partial loss of engine power and a subsequent off-airport precautionary landing.\r 1
The pilot's loss of airplane control due to spatial disorientation while operating in night, instrument meteorological conditions. 1
The pilot's loss of airplane control while attempting to fly a missed approach procedure in instrument meteorological conditions. 1
The pilot's loss of directional control during a tailwind landing. 1
The non-certificated pilot's delayed go-around procedure, which resulted in collision with trees. Contributing to the accident was the pilot's lack of total flying experience. 1
The pilot’s failure to maintain airplane control during a go-around to avoid another airplane that was making a nonstandard approach to the opposing runway. Contributing to the accident was the other pilot’s use of a nonstandard approach while landing on the opposing runway. \r\n\r 1
The failure of the main landing gear tire, which resulted in separation of the servo block and subsequent total loss of all hydraulic system pressure and prevented the landing gear from extending before landing. 1
A catastrophic engine failure due to an oil starvation event for reasons that could not be determined based on the available evidence.\r\n\r 1
A loss of directional control during takeoff for reasons that could not be determined because postaccident examination of the airplane revealed no anomalies. \r\n\r 1
The partial loss of engine power due to the undetected blockage of the inlet and outlet ports of the manifold valve by an organic compound of an unknown source.\r 1
An in-flight loss of control for reasons that could not be determined based on the available evidence.\r 1
The pilot's failure to maintain aircraft control when executing a landing with a tailwind, resulting in impact with a retaining wall. 1
the improper loading and securing of the cargo pallets, which shifted on departure, resulting in substantial damage to the aft pressure bulkhead. 1
The total loss of engine power due to fuel starvation, which resulted from debris restricting the fuel flow within the fuel system.\r 1
The pilot’s inadvertent deactivation of the yaw damper in flight, which resulted in a prolonged side-slip condition that led to fuel starvation and the eventual total loss of engine power. Contributing to the accident was the pilot’s failure to attempt to restart the engine.\r 1
The pilots’ improper decision to continue flight in icing conditions after the deicing boots could not shed accumulated ice, which resulted in a temporary loss of airplane control.\r 1
The student pilot's failure to maintain directional control during landing after an encounter with a dust devil. 1
The pilot's failure to maintain airspeed during initial climb, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the inability of the flight instructor to take control of the airplane due to the lack of fully operational dual controls in the right-seat pilot position.\r\n\r 1
The pilot overcorrected when the airplane experienced a downdraft during the takeoff which resulted in the airplane stalling and impacting the terrain. 1
The brake application for unknown reasons resulting in rupture of the left main landing gear tire and tube, and subsequent loss of directional control. 1
The pilot’s loss of airplane control during the landing approach after a loss of engine power, which led to a collision with trees and terrain. Contributing to the accident was the pilot’s inadequate preflight fuel planning, which led to fuel exhaustion and the subsequent loss of engine power.\r 1
The pilot's decision to fly the improperly balanced helicopter at high speed and low altitude, which resulted in a loss of control and collision with terrain. Contributing to the accident were the pilot's depression and resulting degradation of executive function and the pilot's use of a sedating antihistamine, which resulted in impaired mental and motor skills.\r\n\r 1
The pilot’s misjudgment of the takeoff distance needed to clear trees at the end of the runway.\r 1
The pilot's improper decision to depart from a runway not suitable for takeoff, which resulted in a loss of aircraft control. 1
The student pilot's failure to maintain adequate airspeed during takeoff and the certified flight instructors delayed remedial action, which resulted in the stall. 1
The pilot’s loss of consciousness during taxi for reasons that could not be determined based on the available information. \r 1
The pilot's improper preflight inspection and in-flight fuel management, which resulted in fuel exhaustion and a subsequent forced landing. 1
The pilot’s failure to recognize the airplane’s low altitude and arrest the airplane’s descent on approach to the airport in dark night conditions, which resulted in controlled flight into terrain. Contributing to the accident was the pilot’s degraded night vision due to glaucoma and a cataract and his impairment from the use of diphenhydramine.\r 1
A loss of engine power due to fuel exhaustion, which resulted from the pilot's erroneous preflight fuel calculations and inadequate in-flight fuel management. 1
The pilots failure to maintain control of the airplane while taxiing in gusty wind conditions. 1
The pilots failure to maintain control of the airplane during an aborted landing in gusty wind conditions. 1
The glider's inadvertent encounter with low altitude wind shear. 1
The amateur-built gyroplane’s collision with terrain for reasons that could not be determined based on the available information. Contributing to the accident was the pilot’s decision to conduct the flight without obtaining additional training.\r 1
The pilot’s failure to recognize and correct for flight conditions conducive to a loss of tail rotor effectiveness, which resulted in a rapid, uncommanded right yaw and subsequent hard landing. 1
The private pilot's failure to maintain proper altitude and the flight instructor's failure to provide correction action, which resulted in a collision with terrain during landing. 1
The pilot’s failure to maintain directional control during a hard landing, which resulted in the fracture of the nose landing gear.\r 1
The pilot's failure to maintain control while maneuvering for landing following a loss of oil pressure. Contributing to the accident was foreign material contamination of the oil system due to improper maintenance. 1
A total loss of engine power during cruise flight for reasons that could not be determined due to the postaccident condition of the engine and its associated fuel and ignition systems. 1
The pilot's inadequate preflight inspection when he did not remove a tie-down strap prior to takeoff, which resulted in a dynamic rollover. 1
The pilot’s failure to maintain yaw control when he applied power to execute a go-around at a low airspeed in dark, night conditions, which resulted in a rapid, uncommanded right yaw due to a loss of tail rotor effectiveness. 1
The pilot/owner's failure to maintain a stabilized approach during the final leg of the traffic pattern. Contributing to the accident was both pilot's lack of aeronautical decision making. 1
A loss of aerodynamic lift, which resulted in an off-airport landing and subsequent impact with a pole. 1
The lack of flat roller bearings in the two elevator trim tab actuators and maintenance personnel’s inadequate lubrication of the left elevator trim tab actuator, both of which resulted in the overstress fracture of the left internal screw and subsequent in-flight failure of the pitch trim system.\r 1
The pilot’s unstabilized approach and failure to go around and his subsequent failure to maintain directional control during the landing roll. \r\n\r 1
The pilot's inadequate flight preparation and navigation during a training flight resulting in collision with low wires. 1
A hard landing by person(s) unknown. 1
A partial loss of engine power due to a failure of the dual magneto system. Contributing to the accident was the improper maintenance of the duel magneto system.\r 1
The pilot's failure to maintain aircraft control during the landing and his poor decision not to abort the landing before the airplane traveled off the end of the airstrip. 1
The pilot's improper flare, which resulted in abnormal contact with the water and separation of the right pontoon.. 1
The pilot's failure to correctly use carburetor heat, resulting in a loss of engine power and collision with terrain. 1
The pilots’ failure to maintain clearance from terrain while operating in dark night, visual meteorological conditions. Contributing to the accident was the pilots’ failure to enable the aural terrain warning system.\r 1
Fatigue failure of the nose landing gear retention and pivot shaft, which resulted in the in-flight separation of the nose gear wheel and tire assembly.\r 1
The flightcrew's improper recovery from a simulated engine failure after takeoff. Contributing to the accident was the flight instructor's failure to clarify who had control of the helicopter. 1
The student pilot's failure to maintain directional control during the hover, and the flight instructors lack of remedial action, resulting in a dynamic rollover and structural damage to the helicopter. 1
The pilot's failure to maintain airplane control during the landing approach due to his diverted attention to the partially opened main cabin door and the unsecured dog. Contributing to the accident was the pilot's failure to securely latch the main cabin door before takeoff and to secure his dog. 1
The loss of engine power due to fuel exhaustion, which resulted from the pilot's inadequate preflight planning and inflight decision making. 1
A partial loss of engine power during climbout due to a malfunctioning magneto and spark plugs.\r\n\r 1
The pilot's inability to maintain control of the glider after the tow cable separated prematurely due to an incomplete engagement of the cable in the control tow release system due to a missing spring.\r\n\r\n \r\n\r 1
The pilot's failure to recognize a wind shift, resulting in a tailwind landing, loss of control, and ground loop. 1
The pilot's inability to control the airplane while taxiing due to a strong crosswind condition. 1
The pilot's loss of directional control during takeoff. Contributing to the accident was the pilot's failure to abort the takeoff at the initial veer off. 1
The failure of the power turbine thrust (No. 5) bearing due to overheating as a result of oil starvation, which led to the engine failure. Also causal to the accident was an undocumented repair to the gearbox cover oil delivery tube port during which an insert was threaded into the oil delivery tube port that subsequently restricted the oil flow to the power turbine thrust bearing. \r\n\r 1
The pilot’s failure to apply carburetor heat during a descent with reduced engine power while operating in conditions conducive to carburetor icing, which resulted in a total loss of engine power.\r 1
The pilot's failure to maintain clearance from the runway during a low-level aerobatic maneuver due to his impairment by an over-the-counter antihistamine. Contributing to the severity of the pilot's injuries were the pilot's lack of fire protective clothing, his inability to egress the cockpit, the rapid spread of the fire, and the decision of the air show's organizers not to have the airport rescue and firefighting services at their highest level of readiness, which delayed arrival of fire suppression equipment.\r\n\r 1
The failure of the pilot to maintain airspeed while maneuvering shortly after takeoff, resulting in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall, uncontrolled descent, and impact with the ground.\r 1
Wear in the left cabin door assembly parts, which resulted in the door partially opening in flight, dislodging from the lower door track assembly, and then separating from the helicopter. 1
The pilot's improper selection of an off-airport landing site and his subsequent failure to maintain clearance from trees during an off airport landing. 1
The pilot's inadequate weather evaluation, which resulted in a turbulence encounter at low altitude and collision with trees. Contributing to the accident was the pilot's lack of knowledge of local wind conditions. 1
A complete loss of engine power for reasons that could not be determined because of insufficient evidence.\r\n\r 1
The pilot's decision to operate the banner-tow flight below the minimum safe altitude specified by federal regulation, which likely limited his ability to recover from a potential loss of airspeed due to a gusting wind condition. Also causal was the pilot’s delayed decision to release the banner, which allowed the airplane to exceed its critical angle-of-attack and resulted in an aerodynamic stall/spin from which he was unable to recover. 1
A partial loss of engine power for reasons that could not be determined because a full examination of the engine could not be performed. 1
Maintenance personnel’s application of insufficient torque to the engine cylinder through bolts during replacement of the No. 1 cylinder, which resulted in the displacement of the No. 2 main bearing, the bearing shifting, and a catastrophic engine failure.\r\n\r 1
The non-instrument rated pilots’ decision to continue flight into known instrument meteorological conditions over mountainous terrain, which resulted in controlled flight into terrain. 1
The improper installation of the hose fuel fitting, which resulted in the fitting becoming disconnected and the subsequent loss of engine power due to fuel starvation.\r 1
The pilot’s improper preflight and in-flight fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power over unsuitable terrain.\r 1
The flight instructor’s failure to arrest the airplane’s descent and maintain clearance from mountainous terrain while maneuvering at a low altitude.\r 1
Fuel starvation due to the deterioration of the fuel selector valve, which allowed fuel to be fed from only the right tip tank. Contributing to the accident was the inadequate annual inspection, which failed to detect the deteriorated valve. \r 1
The pilot’s inadequate approach and his failure to maintain clearance from power lines, which resulted in a subsequent fire. \r\n\r 1
The air traffic controller’s failure to provide required advisories about significant radar-observed convective precipitation along both airplanes’ flight routes and the air route traffic control center’s lack of a program to ensure that air traffic controllers provide this required information to pilots, which led to both airplanes encountering severe turbulence. Contributing to the airplanes’ encounters with severe turbulence was the flight crews’ failure to detect the precipitation using on-board radar and request deviations, as necessary, to avoid the hazard.\r 1
The pilot's loss of directional control and early rotation during takeoff. Contributing to the accident was the failure of the pilots to exercise adequate communication techniques. 1
The pilot’s improper landing flare, which resulted in a hard landing and separation of the left main landing gear.\r 1
The instructor's failure to obtain the proper touchdown point in a multiengine airplane, during a single-engine approach in a strong gusty headwind. 1
The pilot’s inadequate preflight planning and subsequent failure to remain clear of power lines while maneuvering low to the ground.\r 1
The pilot's improper landing flare after encountering a gusting crosswind and his inadequate recovery from the subsequent bounced landing. 1
The pilot's loss of directional control during takeoff, resulting in a collision with terrain and ground loop. 1
The pilot misjudged the float equipped airplane's altitude while maneuvering above the surface of a lake, which resulted in a float inadvertently contacting the water. Contributing to the accident were the glassy water conditions and pilot's lack of recent experience in amphibious airplanes. 1
The failure of the drive mechanism for the gearbox motor, which resulted in the gear not extending for the landing.\r 1
The local controller’s failure to comply with Federal Aviation Administration separation requirements for aircraft operating on intersecting runways. \r 1
The flight instructor’s inadequate autorotation, which resulted in a hard landing and postcrash fire. Contributing was the flight instructor’s lack of experience in performing an autorotation in the accident make and model of helicopter.\r 1
The loss of right brake effectiveness during landing for reasons that could not be determined based on the available evidence, which resulted in a loss of directional control.\r 1
The student pilot's failure to maintain tail rotor clearance from terrain while transitioning to a hover taxi and the instructor pilot's inadequate remedial action to prevent the impending tail rotor contact. 1
The pilot's failure to maintain directional control while operating in gusty wind conditions at a low altitude. 1
The total loss of engine power for reasons that could not be determined because examination of the engine did not reveal any evidence of preimpact failures or malfunctions that would have precluded normal operation. 1
The fatigue failure of the No. 4 cylinder exhaust valve due to excessive wear of the corresponding train tappet, which resulted in a total loss of engine power.\r 1
The noninstrument-rated pilot’s decision to enter instrument meteorological conditions, which resulted in the loss of airplane control.\r 1
The pilot’s improper approach, which resulted in a long landing right of the runway centerline and the airplane’s subsequent collision with a riding mower that would have been difficult for the pilot to see due to its color and the nose-high attitude of the tailwheel-equipped airplane during landing. \r 1
The pilot's failure to attain a proper touchdown point during landing and his failure to go around when he recognized that he would not be able to stop the airplane on the runway, which resulted in a runway excursion.\r 1
Both pilots’ failure to maintain adequate clearance from each other during cruise flight while in visual contact with each other. Contributing to the accident was the unexpected abrupt maneuver made by the pilot.\r 1
The commercial pilot’s improper control inputs, which resulted in a loss of helicopter control during takeoff.\r 1
The pilot's inadequate preflight inspection and planning and inflight fuel management, which resulted in a loss of engine power due to fuel exhaustion and a subsequent forced landing in an area of unsuitable terrain. 1
The pilot’s inadequate inflight fuel management, which led to a loss of engine power due to fuel exhaustion or starvation. \r 1
A total loss of engine power during initial climb for reasons that could not be determined during postaccident examination and testing. 1
The total loss of engine power due to fuel exhaustion. Contributing to the fuel exhaustion was the pilot's failure during the building process to properly determine the unusable quantity of fuel. 1
The flight instructor's delayed reaction to the loss of directional control, which resulted in a ground loop. 1
The pilot's distraction with traffic on the runway, and his subsequent failure to retract the air brakes prior to touchdown, which resulted in a hard landing. 1
The pilot's failure to maintain clearance from the water while operating at a low altitude. 1
The pilot's decision to continue the flight into known deteriorating weather conditions at a low altitude and his subsequent failure to remain clear of an unlit wind turbine. Contributing to the accident was the inoperative obstruction light on the wind turbine, which prevented the pilot from visually identifying the wind turbine. 1
The sport pilot's failure to maintain aircraft control during taxi as a result of improperly manipulating the engine power. 1
The pilot's loss of directional control during landing, resulting in a ground loop. 1
An inadvertent collision with wildlife while landing. 1
A loss of engine power while the helicopter was hovering for reasons that could not be determined because postaccident examination of the engine and rotor drive system revealed no evidence of a mechanical malfunction or failure that would have precluded normal operation.\r 1
The student pilot's failure to maintain control of the airplane during the landing, and the flight instructor's inadequate supervision of the student pilot resulting in abnormal runway contact and damage to the airplane. 1
The pilot's loss of directional control while landing in gusty crosswinds in a tail wheel equipped airplane. 1
The pilot's failure to maintain sufficient airspeed and his delayed application of engine power while on short final which resulted in a hard landing. 1
The pilot's inadequate preflight inspection, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot’s failure to maintain airplane control and sufficient altitude to clear terrain during a low-altitude maneuver.
\r 1
The pilot’s failure to attain the proper touchdown point during a no-flap landing to a wet, down-sloping runway, and the airplane's dynamic hydroplaning after touchdown, which resulted in a runway overrun. Contributing to the accident was a total loss of electrical power due to an alternator failure.\r\n\r 1
The pilot's failure to maintain directional control during landing which resulted in a ground-loop and nose over. 1
The pilot's failure to maintain proper airspeed while on approach, and his subsequent failure to recover from a bounced landing, which resulted in a hard landing. 1
The pilot’s failure to maintain airplane control during the approach to land. Contributing to the accident was the pilot’s unfamiliarity with and lack of training in the accident airplane make and model.\r 1
The pilot's failure to maintain directional control during landing in a gusty crosswind which resulted in a runway excursion and collision with terrain. 1
The improperly attached fuel line and cracked fuel diaphragm due to unknown personnel’s inadequate maintenance, which resulted in the loss of engine power during cruise flight and the subsequent forced landing onto rough terrain.\r 1
The failure of the pilot to identify poor engine performance during the engine run-up before takeoff. Also causal to the accident was the mistimed right magneto and the poor condition of the spark plugs in the No. 4 cylinder. 1
The pilot's failure to maintain aircraft control while departing from a wet runway. 1
The pilot’s failure to maintain aircraft control during engine startup, which resulted in a collision with a parked airplane. Contributing to the accident was the pilot’s failure to follow engine startup procedures and a sudden surge of engine power for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions. \r\n\r 1
The flight instructor's failure to maintain control of the airplane during the landing attempt. Contributing to the accident was the changing wind conditions. 1
The airplane’s encounter with a strong tailwind and/or windshear, which resulted in an inadvertent stall. Contributing to the accident was the pilot’s continuation of the unstable approach, long landing, and delayed decision to conduct a go-around. 1
An extreme vibration immediately after entering forward flight for reasons that could not be determined because postaccident examination of the helicopter did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot’s inability to maintain helicopter control during the landing. \r 1
The pilot's failure to maintain clearance from power lines while flying at a low altitude. 1
The pilot's inadequate inflight fuel monitoring, which resulted in fuel exhaustion and the subsequent total loss of engine power. Contributing to the accident was the loose fuel cap, which allowed fuel to syphon out in flight.\r\n\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in the airplane nosing over. 1
The pilot's failure to compensate for wind conditions during landing, which resulted in a hard landing. 1
The pilot's delayed action to abort the takeoff. Contributing to the accident was the pilot's inadequate preflight planning and a high density altitude. 1
The pilot’s failure to maintain pitch control during takeoff after encountering a boat wake, which resulted in the airplane bouncing, impacting the water’s surface, and subsequently becoming submerged. \r\n\r 1
The pilot’s failure to reconnect the air-oil separator return line after completing an oil change, which resulted in a total loss of engine power due to oil starvation. \r 1
The total loss of engine power due to carburetor icing, which resulted from the pilot’s failure to use carburetor heat in cruise flight while operating in an area conducive to carburetor icing. \r 1
The pilot’s inadequate preflight planning, which resulted in his attempt to takeoff in conditions under which the airplane was unable to attain a positive rate of climb and resulted in its failure to clear trees. 1
The pilot's failure to select and attain a proper touchdown point during landing which resulted in a runway overrun. 1
The pilot's downwind takeoff from a grass airstrip, which resulted in inadequate climb performance and the subsequent impact with terrain. 1
The pilot’s failure to maintain lateral control during the initial climb. Contributing to the accident was the pilot’s failure to obtain sufficient training and experience to operate the high-performance airplane.\r 1
The improper rigging of the landing gear by maintenance personnel, which resulted in the landing gear collapse. 1
The pilot's decision to depart from a soft runway with a tailwind and toward obstructions, and his failure to follow the manufacturer's recommended procedures for the takeoff. Contributing to the accident were the degradation of airplane and engine performance due to the high density altitude and the pilot's failure to properly configure the airplane's carburetor heat. 1
The pilot's failure to maintain helicopter control during landing resulting in a hard landing and a roll over. 1
The pilot's loss of control while entering a vortex ring state (settling with power) condition, which resulted in a hard landing. 1
The pilot's use of excessive brakes during landing, which resulted in a nose over. Contributing to the accident was a partial loss of engine power during takeoff initial climb, likely due to carburetor ice. 1
Maintenance personnel’s inadequate inspection of the engine’s outer combustion case, which resulted in the failure of the case due to fatigue cracks that initiated on the inside surface of the case and the subsequent total loss of engine power. 1
The flight crew’s decision to attempt an engine start in conditions that exceeded the engine's maximum allowable ground start crosswind component limitation.\r 1
The student pilot's failure to maintain directional control of the airplane during the takeoff roll. 1
The pilot's failure to maintain adequate obstacle clearance, which resulted in the inflight collision with a power line. 1
The pilot's failure to maintain directional control during an attempted go around in gusty wind conditions which resulted in a collision with terrain. 1
The pilot’s loss of directional control while landing at night, which resulted in a runway excursion and collision with airport signage. Contributing to the accident was the total loss of electrical power, which necessitated the pilot having to land without the aid of the airplane’s landing lights and some of the available runway lighting. \r 1
The pilot's mismanagement of the onboard fuel supply, which resulted in fuel starvation to the engine and a subsequent loss of engine power. Contributing to the death of the right front passenger was the inadequate occupant restraint. 1
The pilot’s inability to maintain aircraft control due to a partial loss of engine power and an encounter with downdrafts and gusting crosswinds while on final approach to the runway. The reason for the partial loss of engine power could not be determined because postaccident examination revealed no mechanical malfunction or failure that would have precluded normal operation. \r 1
The total loss of engine power for reasons that could not be determined because postaccident examination and testing of the engine revealed no anomalies.\r 1
A loss of propeller thrust due to a failure of the reduction drive unit resulting from the improper installation of the unit. Contributing to the accident was a lack of documentation for the reduction drive unit installation.\r 1
The pilot's repeated attempts to take off from an unimproved field with tall grass. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack while maneuvering at low altitude, which led to an aerodynamic stall and loss of control. Contributing to the accident was the installation of an inappropriate airspeed indicator that did not provide airspeed indications near the airplane’s stall speed. \r 1
The pilot's failure to maintain adequate airspeed during low altitude maneuvering. 1
The pilot's improper flap retraction during a short field takeoff, which resulted in the aircraft experiencing an aerodynamic stall and impact with trees. 1
the captain's failure to verify the communications between himself and the tug operator, which resulted in him applying of brakes while the airplane was being pushed back from the gate by the tug with tow bar attached. 1
The pilot's selection of an inadequate altitude during low level maneuvering, which resulted in an in-flight collision with trees. 1
The probable cause of the uncontained No. 2 engine failure on the Raytheon Beechjet 400A was a yellow-crowned night-heron birdstrike that resulted in fan blade contact with the inlet case and rub induced excitation of a previously unidentified natural frequency (resonance) within the engine operating range. 1
The assembler’s improper fabrication of a fuel line (hose) and the subsequent failure to verify that it was not occluded, which resulted in fuel starvation and a total loss of engine power during takeoff.\r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground loop. \r\n\r 1
A fire in the airplane’s engine compartment that initiated for reasons that could not be determined due to extensive fire damage.\r 1
A partial loss of engine power due to encounter with weather conditions conducive to carburetor icing. Contributing the accident was the pilot's inadequate weather planning. 1
The pilot's failure to maintain clearance from a forklift while taxiing. 1
The pilot's failure to maintain aircraft control on takeoff. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack after a total loss of engine power during the takeoff initial climb, which resulted in an aerodynamic stall and impact with terrain. The reason for the total loss of engine power could not be determined because an examination of the airframe and engines did not reveal any anomalies that would have precluded normal operation. \r\n\r 1
The loss of engine power as a result of carburetor icing. \r 1
The pilot’s decision to exit the helicopter while it was running and his failure to properly secure the flight controls with the engine operating at flight idle before exiting the helicopter.\r 1
The pilot's failure to maintain aircraft control after the helicopter's skid catching on the side of a trailer during takeoff, which resulted in a dynamic rollover. 1
The pilot’s improper preflight planning and in-flight fuel management, which resulted in fuel starvation and a total loss of engine power. Also causal to the accident was the pilot’s failure to see and avoid the wires on the airport boundary.\r 1
The pilot's loss of directional control during landing and subsequent go around attempt. 1
The pilot's improper application of brakes during taxi in tailwind conditions, which resulted in a loss of aircraft control and subsequent nose over. 1
The pilot's failure to maintain directional control after the airplane encountered a wind gust during takeoff roll. Contributing to the accident was the pilot inadvertently using a runway that resulted in a gusty tailwind condition. 1
The pilot's excessive use of wheel brakes during landing, which resulted in a nose-over. Contributing to the accident were high winds and a short, downhill sloped runway. 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and a total loss of engine power. 1
The loss of directional control during takeoff for reasons that could not be determined due to the extent of fire damage.\r 1
An inflight collision with a goose while on an approach. 1
The pilot's operation of the airplane while intoxicated, which resulted in a loss of airplane control. 1
The pilot's failure to adjust the engine's fuel-air mixture and decision to takeoff in high density attitude conditions which degraded the airplane's performance. 1
The pilot's inadequate monitoring of his glide path resulting in a collision with a berm prior to landing. 1
The pilot allowed the airplane to liftoff without sufficient airspeed which resulted in a stall and subsequent impact with the terrain. 1
Inadequate maintenance, which resulted in the collapse of the right main landing gear during landing.\r 1
The failure of the right main landing gear extension spring to maintain adequate pressure, which allowed the landing gear to collapse during the landing roll. \r\n\r 1
The pilot’s improper management of the fuel mixture and his failure to use the appropriate checklist and guidance during the flight, which resulted in an overrich mixture condition, carbon-fouling of the spark plugs, and a subsequent total loss of engine power during an attempted go-around.\r 1
The airplane’s low-level encounter with a downdraft that maximum engine power could not overcome.\r 1
The pilot's failure to maintain control of the airplane, resulting in a hard landing. 1
The builder's improper wiring of both fuel pumps to the battery-powered bus, which resulted in a total loss of engine power when the batteries failed because all power to the fuel pumps was lost. 1
The pilot’s failure to maintain directional control during both the landing and the subsequent attempted go-around.\r 1
The pilot's failure to maintain control of the airplane while landing in gusty wind conditions.\r\n\r 1
The pilot's loss of airplane control during an instrument approach procedure, which resulted in the airplane exceeding its critical angle of attack and entering an inadvertent aerodynamic stall and spin. 1
The pilot's inadequate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's impairment due to cocaine use. 1
The pilot's failure to adequately secure the airplane before hand-propping the engine for startup. 1
The pilot’s continued visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain. \r 1
\r\nThe pilot's failure to maintain control of the airplane during the landing approach in gusty wind conditions. 1
The pilot's inadequate compensation for the wind conditions during landing. 1
The pilot's improper in-flight fuel management, which resulted in fuel exhaustion in the selected tank and a subsequent loss of engine power due to fuel starvation. 1
The student pilot's failure to maintain directional control during the takeoff roll, which resulted in a collision with an obstacle. 1
The student pilot's excessive speed during taxi which resulted in a runway overrun. Contributing to the accident was the pilot's inadequate monitoring of the remaining runway length available during the landing roll. 1
The pilot’s inadequate recovery from a practice autorotation, which resulted in an improper touchdown attitude and collision with terrain.\r 1
An inflight failure of the airplane's only operating vacuum pump, which resulted in the loss of attitude information provided by vacuum-driven flight instruments. Also causal was the pilots' failure to maintain control of the airplane while operating in instrument flight rules (IFR) conditions, likely due to spatial disorientation, following the failure of the vacuum pump. Contributing to the accident was the operator's decision to dispatch the airplane with a known inoperative vacuum pump into IFR conditions. 1
The pilot's failure to maintain directional control during the landing roll with a tailwind. 1
The pilot's decision to depart with a known mechanical malfunction and his improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and subsequent impact with terrain during an off-airport landing. 1
The pilot’s failure to maintain airplane control during approach for landing, which resulted in a stall/spin.\r\n\r 1
The inoperative galley drain tube heater, which allowed water within the tube to freeze and led to its failure; the tube’s failure allowed water to drain onto the rudder cables and freeze and resulted in the rudder binding during landing. 1
The pilot's decision to attempt a mission at night with known en route weather conditions below operating minimums, likely due to self-induced pressure, and then continue flight beyond the alternate landing airport as weather conditions deteriorated, which resulted in the pilot experiencing spatial disorientation. Contributing to the accident were the pilot's fatigue, his failure to recognize that mist had formed on the inner surface of the windshield, his complacency due to the effectiveness of the night vision goggles, and his failure to use the radar altimeter. 1
The pilot's failure to maintain directional control of the airplane while taxiing on a snow covered runway, which resulted in a collision with a terrain. 1
The pilot's failure to obtain the proper touchdown point while landing on a lake with a tailwind. 1
The pilot's inadequate flare, which resulted in a bounced landing and subsequent loss of aircraft control during landing. 1
The loss of engine power due to the misrigging of the fuel mixture control.\r\n\r 1
The student pilot's failure to maintain directional control during the aborted landing. Contributing to the accident was his failure to compensate for torque, P-factor, and the reported crosswind conditions. 1
The pilot’s delayed decision to maneuver around rising terrain, which resulted in a collision with trees and terrain. Contributing to the accident was the pilot’s failure to calculate the performance requirements needed to climb over mountainous terrain before the flight. \r\n\r 1
The failure of the pilot and the parachutist to see and avoid each other, which resulted in the airplane’s wing colliding with the parachute’s suspension lines.\r 1
The pilot’s failure to maintain adequate separation from a helicopter during the approach to landing, which resulted in an encounter with the helicopter’s trailing vortices, a loss of airplane control, and impact with terrain.\r\n
\r 1
The flight instructor's decision to continue the landing in close proximity to a landing helicopter, resulting in an encounter with rotor vortices, loss of airplane control, and collision with terrain. 1
The pilot’s failure to secure the magneto switch before attempting to hand rotate the engine which resulted in an inadvertent engine start, a runaway airplane, and subsequent impact with parked airplanes. Contributing to the accident was the failure to properly secure the airplane with chocks. 1
The pilot's failure to maintain directional control during takeoff which resulted in the airplane striking a snow bank. 1
The passenger inadvertently interfered with the rudder control pedal, which resulted in a loss of directional control during takeoff. 1
A fire due to a fuel leak of the cabin heater system. Contributing to the accident was the inadequate maintenance of the airplane, which failed to identify leaks in the heater system.\r 1
The pilot's inadequate landing flare, which resulted in a bounced landing and substantial damage to the firewall. 1
The pilot’s delayed decision to initiate a course-reversal turn when the airplane was unable to attain sufficient altitude to cross a mountain range, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall during the turn. Contributing to the accident was the pilot’s selection, for undetermined reasons, of a route different than his normal route. \r 1
The pilot's loss of directional control during takeoff with a gusty crosswind. 1
The pilot’s improper recovery from a bounced landing, which resulted in an aerodynamic stall, a subsequent nose-down landing, and excessive bending loads to the nose landing gear.\r 1
The unsuitable landing area encountered by the pilot due to wet soft snow conditions that resulted in a nose over. 1
The pilot’s failure to maintain airspeed and angle of attack, which resulted in an aerodynamic stall and loss of aircraft control in gusty and turbulent wind conditions. \r 1
The pilot's reconfiguration of the fuel venting system, which resulted in a loss of engine power and subsequent loss of aircraft control.\r\n\r 1
The probable cause of the uncontained No. 2 engine failure on the Raytheon Beechjet 400A was a herring gull birdstrike that resulted in fan blade contact with the inlet case and rub induced excitation of a previously unidentified natural frequency (resonance) within the engine operating range. 1
the captain's decision to reject the takeoff after the airplane had rotated. Contributing to the accident was the flight crew's failure to follow standard operating procedures by not verifying that the airplane's flight management computer was properly configured for takeoff and the captain's failure to perform the correct action in response to the electronic centralized aircraft monitoring alert. 1
The pilot's inadequate construction of the propeller bracket, which resulted in its failure during the initial climb and the propeller subsequently departing the airplane. 1
A loss of aircraft control during landing, due to the pilot's excessive braking. Contributing to the accident was the pilot's lack of recent flight experience. 1
The pilot's failure to compensate for the reported crosswind conditions resulting in the wings contacting the ground. 1
The pilot’s improper preflight planning and fuel management, which resulted in a total loss of power in both engines due to fuel exhaustion.\r 1
The pilot's failure to maintain control of the airplane while maneuvering at low altitude. 1
The pilot's failure to maintain directional control during the landing, which resulted in the airplane departing the runway and nosing over. 1
The pilot's inadequate in-flight planning/decision to maneuver the glider where the lift was not sufficient to maintain flight, resulting in an off airport landing. 1
\r\nThe pilots' inadequate in-flight planning and improper selection of runway 36 for landing, which resulted in a significant quartering tailwind during the landing, exceedance of the airplane's braking capability, and a subsequent runway overrun. 1
The pilot's failure to ensure that the airplane's landing gear was down and locked prior to touchdown. Contributing to the accident was the possibility of intermittent landing gear operation due to a faulty hydraulic power pack contactor. 1
the flight attendant inadvertently tripping over a passenger's foot that was protruding into the aisle, which resulted in the flight attendant fracturing her foot. 1
The pilot inadvertently raised the landing gear lever rather than the adjacent flap level while exiting the runway which resulted in the retraction of the left main landing gear. 1
The loss of helicopter control due to a loss of hydraulic boost to the tail rotor pedal controls at takeoff, followed by a loss of hydraulic boost to the main rotor controls after takeoff. The reason for the loss of hydraulic boost to the main and tail rotor controls could not be determined because of fire damage to hydraulic system components and the lack of a flight recording device. 1
The flight instructor's failure to ensure that carburetor heat was used while performing maneuvers at reduced power settings in conditions conducive to the formation of carburetor ice, which resulted in a partial loss of engine power due to carburetor ice. Also causal was the flight instructor's failure to secure the engine before landing, which resulted in a sudden increase of engine power and an aerodynamic stall at a low altitude. 1
The student pilot's inadequate compensation for the gusting crosswind conditions and the certified flight instructor's inadequate supervision, resulting in a loss of directional control during the landing roll. 1
The pilot's bounced landing and delayed decision to go around, which resulted in collision with a fence during the go around. 1
The pilot’s loss of control during a forced landing following a loss of engine power for reasons that could not be determined due to postimpact fire damage.\r\n\r 1
The front seat pilot's excessive approach speed and subsequent brake application during the landing which resulted in a nose-over. Contributing to the accident was the instructor's failure to maintain situational awareness. 1
The pilot's failure to maintain directional control during a takeoff, which resulted in the airplane veering off the runway surface and colliding with a sign. 1
The pilot's decision to power out of soft snow with a gusty quartering tailwind which resulted in the tail of the airplane rising and the airplane nosing over. 1
The pilot's loss of airplane control while operating in instrument flight rules conditions. \r\n\r\n \r\n\r 1
The partial loss of engine power due to an improperly maintained carburetor and the pilot's subsequent failure to maintain aircraft control. 1
The pilot's decision to continue operation of the airplane with known mechanical issues (fluctuating oil pressure and metal in the oil filter), which was the result of undertorqued cylinder through bolts. Contributing to the accident was the mechanic's failure to properly torque the engine through bolts, which led to the eventual failure of the crankshaft. 1
The failure of the nose gear actuator attachment to the engine mount due to overstress, which resulted in the loss of directional control during landing. 1
The student pilot's inadequate landing flare, which resulted in a hard landing. 1
The distributor failure, which resulted in a total loss of engine power during cruise climb. 1
The pilot’s failure to properly secure the primer, which resulted in the loss of engine power during takeoff. \r 1
The pilot's inadequate compensation for the tailwind conditions and failure to maintain directional control during landing. 1
The pilot’s failure to maintain control of the helicopter while in the traffic pattern. \r 1
The pilot mistakenly manipulated the airplane's mixture knob rather than the propeller control knob during the descent, reducing the airplane's mixture knob to where the fuel-air mixture to the engine was too lean, which caused the engine to fail, and the pilot's failure to maintain control of the airplane during the subsequent night forced landing. \r\n\r 1
The pilot’s failure to maintain airspeed while approaching the airport, which resulted in a stall/mush.\r 1
The pilot's failure to maintain directional control during the landing roll which resulted in a veer off the airstrip and collision with a ditch. 1
The balloon's encounter with unexpected increased wind, which resulted in a hard landing on rough terrain. 1
The pilot's improper decision to execute a precautionary landing to unsuitable terrain following an inflight encounter with a wind gust, resulting in substantial damage to the airplane. 1
The loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no anomalies. 1
The propeller blade’s failure due to fatigue cracks that initiated from pitch change pin attachment holes that had been drilled too deep during manufacture.\r 1
The pilot’s failure to maintain control of the unregistered airplane in gusting wind conditions. \r\n\r 1
The pilot's inadequate preflight inspection of the airplane, which resulted in oil starvation and a subsequent engine failure. 1
The fracture of the right aft landing gear strut due to undetected fatigue cracking in an inboard rivet hole.\r 1
The pilot’s failure to maintain adequate airspeed during an off-airport forced landing after a loss of engine power due to carburetor icing and his exceedance of the airplane’s critical angle-of-attack, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s delayed application of carburetor heat while operating in conditions conducive to carburetor icing. Contributing to the severity of both occupants’ injuries was the lack of adequate restraint.\r\n\r 1
An inadvertent stall during gusting crosswind conditions. 1
A cracked nose landing gear pulley, which resulted in the binding of the nosewheel steering system.\r\n\r 1
An unexpected increase in wind velocity which resulted in a hard landing and the subsequent passenger injury. 1
The pilot's inadequate flare resulting in a hard landing. 1
The pilot's failure to maintain directional control during the landing roll. Contributing to the accident was sun glare. 1
The student pilot's failure to maintain control during a go around, which resulted in a collision with terrain. 1
The pilot's mismanagement of the throttle and propeller controls during the attempted go-around after encountering turbulence, which resulted in his failure to maintain adequate airspeed and climb rate and a subsequent forced landing and impact with terrain. Contributing to the accident was the pilot’s lack of knowledge about the airplane’s equipment. 1
The pilot's improper landing flare resulting in a bounced landing and his delay in performing a go around which resulted in a collision with trees. 1
The non-certificated pilot's in-flight loss of control for reasons that could not be determined from the available evidence. 1
The pilot's loss of yaw control during takeoff due to the absence of hydraulic boost to the tail rotor pedals for reasons that could not be determined based on the available information. A finding in the accident was the lack of a caution indicator to alert the pilot of the lower hydraulic system configuration.\r\n\r\n \r\n\r 1
Failure of the pilot to attain and maintain sufficient control inputs to compensate for the crosswind. Contributing to the accident was the flight instructor's failure to adequately monitor the pilot and the flight. 1
The pilot's distraction in the cockpit while on a visual approach over water during a dark night resulting in the airplane descending until impact with the water. 1
Maintenance personnel’s failure to safety wire the throttle control adapter per maintenance instructions when the carburetor was replaced and to detect that the adapter was not safety wired during the annual inspection, which resulted in the throttle control disconnecting and subsequent loss of engine control. 1
\r\nA sudden fuel leak, which resulted in a postlanding fire; the origin of the leak could not be determined due to fire damage.\r\n\r 1
The operation of an aircraft by a non-certificated pilot. Contributing to the accident was the non-certificated pilot's failure to maintain aircraft control on take-off in gusty wind conditions. 1
The pilot's improper application of brakes during the landing roll resulted in a runway excursion and nose over. 1
The pilot's loss of directional control while landing. 1
The fuel system’s inadequate design, which resulted in negative pressure in the right fuel tank and a total loss of engine power during cruise flight due to fuel starvation. 1
Maintenance personnel’s failure to properly torque the engine case through bolts, which resulted in the fatigue fracture of the crankshaft and subsequent total loss of engine power.\r 1
The failure of both pilots to see and avoid each other, which resulted in a collision. 1
The pilot's failure to maintain airplane control after the left cockpit canopy opened during takeoff for reasons that could not be determined due to fire damage. 1
A dynamic rollover during attempted liftoff.\r 1
The flight instructor’s overpriming of the engine during multiple unsuccessful engine start attempts on an active runway, which resulted in an engine compartment fire.\r 1
The pilot’s loss of airplane control during the approach to landing.\r 1
The pilot's loss of control due to a temporary incapacitation. 1
The pilot's loss of directional control during the landing flare with a gusting tailwind. 1
The decision by the ship pilot and the helicopter crew to lower the ship pilot to a location on the ship that did not provide the helicopter pilot with an adequate view of the ship. Contributing to the accident was the inadequate pre-mission coordination between the ship, the ship pilot agency, and the helicopter operator.\r\n\r 1
The in-flight collision with a tree in a heavily wooded area during controlled flight while the pilot was attempting a forced landing for reasons that could not be determined based on the available evidence. Contributing to the delay in locating the wreckage were the nonactivation of the emergency locator transmitter and delayed coordination between the Civil Air Patrol and multiple local and state agencies.\r 1
The pilot's failure to maintain airspeed after a total loss of engine power at takeoff, which resulted in a hard landing. Also causal was the pilot/owner/builder's improper installation of the magnetos which resulted in the engine power loss. 1
The pilot's failure to maintain airplane control while maneuvering at a low airspeed, which resulted in an aerodynamic stall, and his decision to maneuver at an altitude that did not allow an adequate margin to recover from a stall. 1
A loss of engine power due to fuel contamination while maneuvering at a low altitude and the pilot's inadequate preflight inspection, which failed to detect the contamination.\r\n\r\n \r\n\r 1
The pilot's failure to maintain control of the airplane while taxiing after landing during gusty wind conditions. 1
The pilots’ inadequate preflight planning and fuel management, which resulted in fuel exhaustion, a loss of engine power, and a forced landing on a soft field. Contributing to the accident was the flying pilot’s improper use of flaps during the forced landing.\r 1
The inadvertent encounter with a microburst during taxi from landing that resulted in the aircraft being turned over inverted and receiving substantial damage. 1
The pilot’s failure to maintain aircraft control while maneuvering near power lines.\r 1
The pilot's inadequate compensation for the wind conditions during landing, resulting in a runway excursion and impact with terrain. Contributing to the accident was the pilot's inadequate evaluation of the wind conditions. 1
The check airman's delayed remedial action and initiation of a recovery procedure after a simulated pitch trim excursion, which resulted in a loss of airplane control. 1
The student pilot's improper flare that resulted in a bounced landing. 1
The pilot's failure to maintain directional control during a precautionary landing. Contributing to the accident was the pilot's delayed decision to divert due to deteriorating weather. 1
The pilot's failure to maintain airspeed while maneuvering at low altitude, which resulted in an aerodynamic stall and impact with water. 1
The pilot's inadequate preflight and in-flight planning which resulted in total loss of engine power due to fuel exhaustion. 1
The pilot’s failure to recover from an intentional spin. Contributing to the accident was the pilot’s lack of adequate spin entry and recovery training. \r 1
The loss of left engine power for reasons that could not be determined due to impact and fire damage. 1
The pilot did not ensure adequate clearance from construction vehicles during taxi. 1
The pilot's lapse in monitoring the airplane's speed during a low level aerial application maneuver and its subsequent stall during the maneuver. 1
Maintenance personnel's application of sealant to the engine case halves during engine overhaul, contrary to manufacturer's instructions, which resulted in internal failure of the engine due to the loss of case bolt torque. 1
The pilot's failure to maintain clearance from a wind generator tower while drying cherries, which resulted in a loss of aircraft control and subsequent hard landing. 1
The pilot's failure to maintain helicopter control while performing a go-around in strong, gusting wind conditions. Contributing to the accident was the pilot's decision to initiate the flight in strong, gusting wind conditions. 1
A loss of engine power due to fuel starvation, which resulted from the pilot's failure to monitor the fuel level and switch tanks in a timely fashion. 1
The total loss of engine power due to a loose oil filter adapter, which resulted in oil starvation. Contributing to the accident was maintenance personnel’s failure to comply with a Federal Aviation Administration airworthiness directive. \r\n\r 1
The pilot’s loss of airplane control while performing an aerobatic maneuver, which resulted in an inverted spin and subsequent collision with terrain.\r 1
The pilot's use of a person unfamiliar with aviation and his failure to properly secure the airplane during hand starting of the engine. 1
The pilot's failure to maintain an adequate airspeed and his exceedance of the airplane's critical angle-of-attack, which resulted in an aerodynamic stall at too low an altitude to recover. \r\n\r 1
The pilot's improper recovery from a bounced landing resulting in a loss of directional control. 1
The pilot's failure to configure the landing gear for landing. 1
The student pilot's inadequate landing flare which resulted in a loss of aircraft control and hard landing. 1
The pilot’s sudden incapacitation from a previously undiagnosed medical condition while in cruise flight, which resulted in his inability to maintain helicopter control.\r 1
The pilot’s execution of a traffic pattern that did not put the airplane in position for a normal final approach and the pilot’s decision to continue the landing attempt instead of initiating a go-around, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall at an altitude too low to prevent ground impact.\r 1
A total loss of engine power during a low pass for reasons that could not be determined during postaccident examination of the engine.\r\n\r 1
The pilot's incomplete assessment of the risk presented by operating an airplane with an unresolved history of engine power losses; a partial loss of engine power during takeoff due to operation of the engine with an excessively rich fuel/air mixture; and the pilot's subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and impact with trees.\r 1
The flight instructor's failure to maintain control while taxiing in a strong gusty wind. 1
The pilot’s inability to maintain a climb while maneuvering the airplane in high-density altitude conditions that degraded the airplane’s climb performance and his exceedance of the airplane’s critical angle-of-attack, which led to an aerodynamic stall and loss of control. Contributing to the accident was the pilot’s inadequate preflight planning and his decision to fly into mountainous terrain.\r 1
The pilot's failure to maintain adequate airspeed during the go-around which resulted in a stall. 1
The pilot's failure to maintain adequate airspeed during a low-level, high angle-of-bank turn, which resulted in an exceedance of the critical angle of attack and a subsequent accelerated stall. \r\n\r 1
The partial loss of engine power for reasons that could not be determined because an operational test run of the engine did not reveal any anomalies that would have precluded normal operation. 1
The pilot's failure to maintain directional control during the landing roll with a crosswind, which resulted in a ground loop. 1
The failure of the landing gear retract rod. \r 1
The noncertificated pilot's failure to maintain clearance from trees. 1
The incorrect (reverse) rigging of the elevator control cables, and the pilot’s inadequate preflight inspection, which failed to detect the misrigging.\r 1
The partial loss of engine power due to the failure of the exhaust valve. \r\n\r 1
The pilot's loss of control of the airplane during initial climb because he failed to correctly compensate for the loss of power in the left engine. Contributing to the accident was water contamination in the fuel and the lack of an adequate preflight inspection by the pilot. 1
The pilot's failure to follow the manufacturer's engine shutdown procedure. 1
The pilot’s failure to reposition the yaw servo hydraulic switch to the “on” position during the pretakeoff hydraulic system check, which resulted in a complete lack of hydraulic boost to the tail rotor system and increased the load required to move the control pedals and led to the pilot’s subsequent inability to manipulate the control pedals and his loss of yaw control.\r 1
The pilot's encounter with a wind gust during takeoff from a short gravel bar, which resulted in the airplane settling after rotation and striking obstacles. 1
The pilot’s failure to maintain adequate clearance from terrain while maneuvering in a canyon in high-density altitude conditions.\r\n\r 1
The pilot’s improper decision to operate the airplane at low altitude and deliberately in close proximity to the boat operators, which resulted in a collision with a boat operator.\r 1
The pilot’s failure to maintain airspeed during a forced landing following a loss of engine power, which resulted in a hard landing. Contributing to the accident was the pilot’s inadequate inspection of the engine, which resulted in a loose ground wire lug on a fuel pump and the subsequent loss of engine power.\r\n\r 1
The total loss of engine power while climbing after takeoff for reasons that could not be determined based on the available information. 1
The student pilot's failure to maintain adequate airspeed during the landing approach which resulted in an inadvertent stall and impact with the runway. 1
The pilot's failure to maintain the proper airspeed and angle-of-attack after a partial loss of engine power on takeoff, which resulted in a stall and the subsequent impact with water. Contributing to the accident was the partial loss of engine power due to the No. 3 cylinder not producing compression for reasons that could not be determined based on the available evidence. 1
The pilot's inadequate flare and failure to maintain directional control during the aborted landing. 1
The pilot's inability to maintain directional control during a crosswind landing. 1
The total loss of engine power due to a lack of lubrication following the in-flight failure of the mechanical oil injection pump. Contributing to the accident was the temporary obscuration of the pilot's forward visibility due to sun glare during the forced landing, which resulted in a collision with power lines. 1
The pilot’s loss of pitch control due to the in-flight opening of the canopy during cruise flight for reasons that could not be determined because fire damage precluded examination of the airplane’s canopy and systems.\r 1
The pilot’s installation of an unauthorized main rotor belt and his subsequent failure to properly inspect the belt, which resulted in inadequate belt tension, the belt’s failure, and the subsequent loss of engine power. \r 1
The pilot misjudged his altitude which resulted in the airplane contacting a wire during the low altitude aerial application maneuver. 1
The pilot's excessive braking following his overshoot of the intended touchdown point on a short airstrip, which resulted in nose-over of the airplane. A contributing factor was the pilot's mental distraction during the landing. 1
The pilot became distracted and landed short of the runway. Contributing to the accident was the hole in the ground. 1
An in-flight fire of unknown origin for reasons that could not be determined because of impact damage and postimpact fire damage. \r\n\r 1
The pilot’s failure to maintain airplane control during initial climb after takeoff, which resulted in an uncontrolled descent into the ground. \r 1
The pilot's failure to maintain directional control during landing, which resulted in a ground-loop. 1
The pilot’s loss of airplane control due to the in-flight separation of the propeller blades for reasons that could not be determined based on the available evidence.\r 1
The pilot’s exceedance of the glider’s critical angle of attack while maneuvering in a steep turn at low altitude, which resulted in an aerodynamic stall. \r\n\r 1
The airplane impacted a bird during low level flight. 1
Loss of engine power due to fuel exhaustion. Contributing to the accident was an incorrectly calibrated fuel totalizer. 1
The student pilot's use of excessive brakes during taxi, which resulted in a loss of aircraft control. 1
The total loss of engine power for reasons that could not be determined because the airplane was not available for postaccident examination.\r\n\r 1
The failure of the two fuel control unit drive bearings for reasons that could not be determined based on the available evidence, which resulted in an uncommanded engine acceleration and subsequent overspeed condition. Contributing to the accident was the pilot’s improper autorotation, which resulted in a hard landing.\r\n\r 1
The pilot’s failure to maintain rotor rpm during an autorotation after a perceived partial loss of power, which resulted in a hard landing. Contributing to the accident was radio frequency interference with the governor controller, which resulted in an uncommanded decrease in throttle and the perceived loss of engine power.\r\n\r 1
The noncertificated pilot’s improper decision to operate the powered-parachute at low altitude through mist in a confined area while he was impaired by multiple sedating medications, which resulted in his loss of control of the parachute and subsequent impact with water. \r 1
The pilot's failure to ensure the security of the seat prior to flight, which resulted in a loss of control and subsequent hard landing. 1
The pilot’s failure to maintain a stabilized approach and his subsequent failure to maintain airplane control during the landing flare, which resulted in touchdown off the side of the runway and collision with a ditch. \r\n\r 1
The pilot’s inadequate preflight planning and checks, during which he failed to determine the quantity and distribution of the fuel, which resulted in the loss of right engine power during takeoff due to fuel starvation. \r\n\r 1
The pilot's inadequate compensation for the wind conditions in the landing area, which resulted in a loss of directional control and encounter with soft terrain and vegetation. 1
The student pilot's use of excessive back pressure on the flight controls during an attempted go around that induced a stall and loss of control. 1
The pilot's mismanagement of the available fuel supply, which resulted in a loss of engine power due to fuel exhaustion. 1
The pilot’s failure to maintain adequate airspeed to compensate for a newly installed wing, which resulted in the aircraft stalling and the subsequent loss of control.
\r 1
The pilot’s inadequate preflight fuel planning during which he did not ensure that there was adequate fuel in the main tanks for the flight, which resulted in a loss of engine power. \r 1
The pilot’s failure to compensate for tailwind conditions and maintain directional control during landing, which resulted in a runway excursion.\r 1
Excessive wear between the power turbine shaft and quill shaft spline, which led to the disconnection of the power turbine wheel, an overspeed of the power turbine, and the subsequent loss of engine power. Contributing to the accident was maintenance personnel’s failure to detect contaminants in the oil filter during the engine’s recent 100-hour inspection.\r 1
The pilot’s inadequate preflight inspection, which resulted in a loss of engine power due to fuel exhaustion.\r\n\r 1
The pilot's failure to secure the fuel strainer drain during the preflight inspection, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's in-flight loss of control resulting from a crosswind gust encountered immediately after takeoff. 1
The noncertificated pilot’s failure to maintain control of the gyroplane following a total loss of engine power due to a loose spark plug.\r 1
A total loss of engine power during cruise flight for reasons that could not be determined based on the available information. \r 1
The pilot's failure to open the fuel tank valves during the preflight examination of the airplane, which resulted in a total loss of engine power due to fuel starvation. 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. Also causal to the accident was the pilots' decision to continue the takeoff despite early indications of engine anomalies.\r\n\r 1
The pilot's failure to maintain aircraft control during the landing approach, which resulted in an excessive descent angle and settling with power. 1
The pilot did not maintain control of the helicopter during the takeoff resulting in low rotor rpm and impact of the fuel trailer during the running landing. 1
The combination of fuel leaking from the integrated drive generator (IDG) fuel/oil heat exchanger and the coincident arcing of the IDG power feeder cables that ignited the leaking fuel. Contributing to the ignition of the fuel was the misrouting of the IDG power feeder cables, which resulted in chaffed cables that exposed the electrical wire that contacted a metal bracket, creating an arc. 1
The pilot's failure to maintain directional control during landing and attempted go-around, resulting in contact with terrain and a ground loop. 1
The pilot's loss of control during the takeoff roll. 1
The pilot’s failure to maintain airspeed during initial climb, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. \r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle
of
attack during a go-around following impact with a barley crop, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s decision to conduct a shallow approach with the airplane facing directly into the setting sun, which resulted in sun glare. \r 1
The student pilot's improper flight control inputs resulting in a loss of control during the landing. Contributing to the accident was the flight instructor's delayed remedial action. 1
An in-flight loss of airplane control for reasons that could not be determined during postaccident examinations or based on the available evidence.\r 1
The pilot's failure to maintain control of the airplane during takeoff resulting in an impact with a tree and terrain. 1
The pilot’s loss of glider control and its subsequent impact with terrain for reasons that could not be determined due to a lack of available information.\r 1
The loss of engine power for reasons that could not be determined because no anomalies were identified during postaccident examination.\r 1
The pilot's failure to maintain aircraft control in gusting wind conditions while on final approach to the runway. 1
The failure of the other flight instructor to move his glider from the active runway in accordance with procedures due to his distraction by having a conversation with the air boss, which resulted in the landing glider colliding with the glider on the runway. \r 1
The pilot's failure to adequately monitor the environmental conditions to assure the aircraft performance would afford an uneventful takeoff with the loading conditions. Contributing to the accident were the pilot's inability to jettison the load due to the dump lever being positioned inappropriately prior to takeoff, and the density altitude. 1
The pilot’s execution of a hard uncoordinated landing, which resulted in the overstress fracture of the right main landing gear (MLG) axle attachment bolts and the subsequent separation of the of the right MLG axle. \r\n\r 1
The separation of a spark plug wire resulting in a loss of engine power during climb out and a subsequent forced landing on a field containing trees. 1
The flight instructor's inadequate supervision during a practice autorotation. Contributing to the accident was the pilot's hard landing during a practice autorotation. 1
The pilot’s improper preflight fuel planning and in-flight fuel monitoring, which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot's decision to take off with a tailwind, which resulted in the airplane not attaining sufficient airspeed for takeoff. 1
The pilot’s failure to secure the cargo in the cargo compartment, which resulted in a weight shift that led to the center of gravity exceeding its aft limit during a go-around attempt and a subsequent aerodynamic stall. Also causal to the accident were the pilot’s inadequate preflight inspection and his loading the airplane beyond the cargo compartment weight limit.\r 1
The pilot’s failure to ensure adequate fuel was onboard to complete the flight, which resulted in fuel exhaustion and the subsequent loss of engine power. Contributing to the accident was the improperly calibrated fuel quantity indication system.\r 1
The pilot's failure to maintain directional control during takeoff when the airplane encountered standing water on the airstrip. 1
The pilot's failure to maintain directional control of the airplane during taxi. 1
The in-flight failure of the right wing’s rear spar.\r 1
The pilot's failure to maintain adequate clearance from powerlines during the landing approach resulting in a collision. 1
A loss of engine power for reasons that could not be determined because postaccident examination of the engine and fuel system revealed no anomalies.\r\n\r 1
The pilot's inability to maintain control of the helicopter as a result of a hydraulic hose becoming entangled around the right skid. 1
The pilot's loss of airplane control during an aborted landing. Contributing to the accident was the pilot's inadequate preflight planning, which resulted in his attempt to land on a runway closed by a notice to airmen and the loss of engine power due to fuel exhaustion. 1
A loss of tail rotor effectiveness, which resulted in an uncontrolled rotation and descent into terrain. Contributing to the accident was a sudden shift in wind conditions and the helicopter's high power demand condition due to its load weight and operating altitude.\r\n\r 1
The pilot's failure to compensate for the high-performance airplane's tendency to enter a torque roll during the initial climb, which resulted in the airplane entering a torque roll and the subsequent loss of control at too low of an altitude to recover. Contributing to the pilot's failure to compensate for the airplane's tendency to enter a torque roll was his impairment from tetrahydrocannabinol. \r\n\r 1
The pilot's failure to maintain adequate airspeed while maneuvering at low altitude, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's decision to make a steep turn at low altitude. 1
The pilot's loss of directional control during landing rollout, which resulted in a runway excursion and the tailwheel airplane nosing over. 1
The pilot's failure to identify the proper landing surface which resulted in an off airstrip landing and collision with rough terrain. 1
The pilot's decision to land with a quartering tailwind and his failure to maintain directional control during the landing roll. Contributing to the severity of the pilot's injuries was the failure of the aluminum center safety belt bracket. 1
The pilot's failure to maintain adequate airspeed following a left turn during takeoff, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. 1
The failure of the exhaust assembly in the No. 3 cylinder for reasons that could not be determined due to the damage incurred to the fractured parts. Also causal to the accident was maintenance personnel’s improper installation of the cylinder.\r 1
A total loss of engine power for reasons that could not be determined because postaccident engine examination revealed no mechanical malfunctions or failures that would have precluded normal operation. \r\n\r 1
The pilot's failure to ensure the landing gear was extended into the fully locked position. 1
The pilot's inadvertent encounter with an unanticipated convective gust front or low-level wind shear while landing, which resulted in a loss of control and subsequent hard landing. 1
A total loss of engine power likely due to a failure of a rotary valve shaft seal and the pilot’s failure to detect and diagnose the impending failure during the preflight inspection.\r 1
The pilot's failure to maintain airplane control when the landing gear unintentionally extended while maneuvering at low altitude and airspeed, which increased the airplane’s drag and decreased its ability to climb over the rising terrain. 1
The pilot's failure to maintain airplane control, which resulted in an aerodynamic stall/spin. 1
The pilot's failure to ensure that the airplane was loaded within its calculated center of gravity limits, which resulted in longitudinal instability and a subsequent unrecoverable stall. 1
The pilot's decision to install an additional cushion to elevate his passenger and his failure to insure the cushion would not interfere with the control stick movement resulting in limited movement of the elevator in flight and collision with a fence during an emergency off field landing. 1
The pilots' incorrect activation of the Manual Override Lever, during ground operation, in an attempt to correct a sub-idle speed condition of the engine, resulting in an over-temperature of the CT blades, their subsequent distress and failure of the engine.\r\n\r\nContributing to the incident was:\r\n\r\nThe incorrect guidance of the Piper Meridian Pilots' Operating Handbook which, contrary to the engine manufacturer's recommendation, allowed the operation of the Manual Over ride Lever during ground operation. 1
The failure of the overtaking airplane’s pilot to maintain visual contact and separation from the airplane being overtaken.\r 1
The airplane’s inability to climb out of ground effect, which resulted from the pilot using a lower power setting than needed for takeoff due to the mechanic’s installation of the wrong engine torque gauge. \r\n\r 1
Maintenance personnel’s improper landing gear system repair, which resulted in a hydraulic leak and subsequent gear collapse during landing.\r 1
The pilot’s inability to maintain airplane control due to a loss of flight control effectiveness for reasons that could not be determined during postaccident examinations.\r\n\r 1
The pilot’s failure to verify the fuel onboard before the flight, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot’s decision to depart in low-ceiling conditions and his continued visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain.\r 1
The powered parachute's reduced takeoff performance in tailwind conditions for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any preimpact anomalies that would have precluded normal operation. Contributing to the accident was the noncertificated pilot's decision to not abort the takeoff before the powered parachute collided with the fence. 1
The airplane owner’s failure to clean and lubricate the engine valve guides and stems, which resulted in a partial loss of engine power during the initial climb due to an exhaust valve failure.\r 1
The pilot's decision to continue the takeoff from the upsloping runway with full-flap deflection in high density altitude conditions, which led to a decreased climb rate and impact with terrain. \r\n\r\n\r 1
The pilot's loss of control of the airplane during landing roll on a rough, grass airstrip in gusting wind. 1
A loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s inadequate preflight inspection. \r 1
The pilot's failure to maintain directional control during a bounced landing. 1
A total loss of engine power for undetermined reasons, which necessitated a forced landing on unsuitable terrain, during which the airplane flipped over and became partially submerged in water.\r 1
The skydiving operator employee’s failure to see and avoid the rotating propeller blades when she walked toward the cockpit while the airplane’s engines were running.\r 1
The student pilot’s decision to fly solo into an unfamiliar, mountain airport during high-wind conditions. Contributing to the accident was a partial loss of engine power during the attempted go-around, which was caused by an over-rich mixture setting. \r\n\r 1
The pilot’s inadequate preflight planning and his subsequent takeoff with the airplane over its allowable gross weight in high
density altitude conditions, which degraded the airplane’s climb performance and led to a subsequent forced landing. \r\n
\r 1
The pilot’s improper landing flare, which resulted in a bounced landing. Also causal to the accident were the pilot’s subsequent delayed decision to abort the landing and his improper execution of the aborted landing, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.\r 1
The pilot's failure to maintain directional control during a go-around after landing. 1
Loss of directional control during landing rollout due to a wind disturbance, which resulted in a runway veeroff and impact with a ditch. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during the turn onto the final base leg in gusting wind conditions, which resulted in a stall/spin at too low an altitude to allow recovery.\r 1
The pilot's failure to maintain directional control during the landing on a narrow airstrip, which resulted in a collision with trees. 1
The loss of engine power during takeoff initial climb for reasons that could not be determined during a postaccident examination of the airplane. \r 1
The inadvertent activation of the engine's mixture control during cruise flight by the pilot undergoing instruction, which resulted in a total loss of engine power. Contributing to the accident was the flight instructor's inadequate monitoring of the pilot's actions. 1
The helicopter pilot/owner's decision to install a belt type not recommended by the kit manufacturer in the tail rotor drive system using the incorrect tension values, which led to the belt’s in-flight failure and the subsequent loss of tail rotor drive during a practice autorotation. 1
The pilot's failure to confirm the flaps had been retracted during takeoff, which resulted in a loss of lift and subsequent collision with terrain. 1
The student pilot's improper application of rudder resulted in a loss of control during the landing roll and the flight instructor's inadequate oversight. 1
The airplane's encounter with a tailwind during takeoff from a short, narrow airstrip, which resulted in a loss of lift and collision with brush and small trees. 1
The non-certificated pilot’s inadequate preflight planning, which resulted in a loss of engine power during takeoff due to fuel exhaustion.\r\n\r 1
The pilot’s impairment due to alcohol ingestion, which resulted in his failure to maintain clearance from trees during a low-altitude flyby.\r 1
Maintenance personnel’s failure to perform required fuel system tests to ensure that the airplane met its original type certification basis after modifying the fuel system and the Federal Aviation Administration’s improper approval of the fuel tank modification via the field approval process during which it did not ensure that the required fuel system tests were performed, which led to the pilot’s inability to determine the airplane’s actual amount of usable and unusable fuel and the subsequent loss of engine power due to fuel starvation. \r\n\r 1
A loss of engine power for reasons that could not be determined due to insufficient evidence.\r 1
The pilot's failure to maintain direction control of the glider during takeoff in gusty wind conditions. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s failure to retract the flaps after beginning the go-around.\r 1
The student pilot’s failure to maintain control of the airplane while landing.\r 1
The pilot's failure to maintain directional control in gusty wind conditions during landing, which resulted in a runway excursion and collision with terrain. 1
The student pilot's improper landing flare, which resulted in a hard landing and the collapse of the nose landing gear. 1
The pilot’s loss of airplane control during initial climb due to his experiencing an incapacitating medical event.\r 1
The pilot's steep right turn shortly after takeoff, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.\r 1
The overload failure of the nosewheel fork retaining bolts during landing, which resulted in a nose-over.\r\n\r 1
The pilot's failure to maintain airplane control while operating in instrument flight rules (IFR) conditions, which was due to spatial disorientation resulting from erroneous heading and bank angle information shown on the primary flight display. Contributing to the accident were the pilot's impairment due to diphenhydramine and his improper decision to operate in IFR conditions with the airplane over gross weight and at an aft center of gravity. \r\n\r\n \r\n\r 1
The pilot's failure to maintain airplane control during the aerobatic flight, which resulted in the airplane exceeding its critical angle of attack and entering an accelerated stall at a low altitude. 1
The flight crewmembers' failure to perform the flight control check before takeoff, their attempt to take off with the gust lock system engaged, and their delayed execution of a rejected takeoff after they became aware that the controls were locked. Contributing to the accident were the flight crew's habitual noncompliance with checklists, Gulfstream Aerospace Corporation's failure to ensure that the G-IV gust lock/throttle lever interlock system would prevent an attempted takeoff with the gust lock engaged, and the Federal Aviation Administration's failure to detect this inadequacy during the G-IV's certification. 1
The pilot's failure to maintain aircraft control while maneuvering for landing. 1
The pilot's failure to maintain control of the airplane during landing in gusty wind conditions. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and subsequent collision with a fence. 1
A loss of engine power for reasons that could not be determined because postaccident testing revealed no anomalies.\r 1
The pilot’s delayed use of carburetor heat during the approach to landing, which resulted in the formation of carburetor ice, a partial loss of engine power, and the airplane’s subsequent inability to sustain flight.\r\n\r 1
The pilot's failure to maintain aircraft control during the takeoff roll, which resulted in inadvertent terrain contact by the wing. 1
The pilot's failure to maintain airplane control, which resulted in a stall and subsequent collision with power lines. 1
The loss of engine power due to oil starvation for reasons that could not be determined based on the available evidence.\r 1
The pilot's failure to maintain directional control during landing roll with a crosswind, which resulted in a runway excursion and impact with terrain. 1
The pilot's failure to adequately monitor the airplane's actual fuel consumption rate, which resulted in a total loss of engine power due to fuel exhaustion. 1
An in-flight collision with a bird during the descent to land, which resulted in substantial damage to the airplane. 1
The pilot's inadequate remedial action during landing on soft terrain, which resulted in a nose-over. 1
The pilot's failure to maintain clearance from a tree at the edge of a field that he was spraying. 1
The pilot's loss of control of the helicopter due to impairment or incapacitation from a sudden, acute cardiac event. 1
The pilot's overcorrection to a wind gust, which resulted in a loss of directional control and runway veeroff. 1
The pilot's failure to maintain aircraft control following a loss of engine power during takeoff. Contributing was the pilot's inadequate fuel management that led to fuel starvation/exhaustion and the loss of engine power. 1
The pilot's misapplication of brakes after landing, which resulted in the airplane nosing over. 1
A total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to land as soon as possible when the master caution warning light first illuminated as prescribed and his failure to ensure the proper setting of the caution panel segment lights before the flight.\r 1
The improper repair of the outer combustion case, which led to its ultimate failure due to the continued progression of a fatigue crack and resulted in a partial loss of engine power during takeoff. \r 1
The instructor pilot's failure to regain control of the airplane following the student pilot's initial loss of control of the airplane. 1
The pilot's improper inflight planning, which resulted in fuel starvation and a loss of engine power. A factor was the pilot's selection of a low cruise flight altitude, which provided little time for the selection of suitable terrain for the forced landing or for engine restart procedures. 1
The flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab.\r 1
The student pilot's failure to maintain aircraft control, which resulted in a hard landing. 1
The pilot’s loss of control and subsequent aerodynamic stall due to spatial disorientation in night instrument meteorological conditions. Contributing to the accident was the pilot’s distraction due to his cell phone use while maneuvering at low-altitude. \r\n\r 1
The pilot's failure to maintain an adequate obstacle clearance altitude from phone wires while performing low-level operations. 1
A total loss of engine power due to fuel starvation because of a blocked fuel line that resulted from the pilot’s improper maintenance practices and the pilot’s subsequent failure to maintain adequate airspeed while attempting a forced landing, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.\r 1
The pilot's loss of control of the airplane during landing on water due to an encounter with wind shear, which resulted in the airplane's abnormal contact with the surface. 1
The pilot's failure to maintain control of the glider during the landing flare which resulted in a stall and hard landing. 1
The pilot/builder's decision to use a lubricant that was not designed for high-speed aviation applications, which resulted in the failure of the propeller needle thrust bearing due to the loss of lubrication from overheating, a total loss of aerodynamic thrust, and a subsequent forced landing. 1
Ground resonance due to maintenance personnel’s improper inspection of the landing gear dampers, which resulted in the dampers operating outside of allowable limits.\r\n\r 1
The pilot's incorrect takeoff procedures from the soft grass runway and his delay in aborting the takeoff after recognizing slow acceleration. 1
The pilot's failure to maintain adequate airspeed during an aborted landing, which resulted in an aerodynamic stall and collision with the ground. Contributing to the accident was the pilot's alcohol impairment. 1
The pilot’s failure to maintain directional control during landing and an attempted go-around, which resulted in collision with terrain. \r\n\r 1
Pilot's failure to verify the amount of chemical load on the airplane prior to takeoff which resulted in the airplane being heavier than expected. Contributing to the accident was loading crew not following the pilot's instructions. 1
The pilot’s inadequate fuel management, which resulted in a total loss of engine power at low altitude due to fuel exhaustion and a forced landing in a muddy field and subsequent nose-over.\r 1
The pilot's failure to verify the airplane's actual fuel quantity before departure, which resulted in a total loss of engine power due to fuel exhaustion and the subsequent forced landing. 1
The pilot's failure to maintain aircraft control during an aborted landing due to an encounter with a tailwind. 1
The pilot’s failure to establish a proper airspeed during takeoff with the airplane near its maximum gross weight in high-density altitude and gusting crosswind conditions. \r\n\r 1
The pilot's failure to maintain directional control of the airplane while landing in a crosswind. Contributing to the accident was the gusty crosswind. 1
The pilot’s failure to maintain roll control during the initial takeoff and his decision to take off with only partial power applied.\r 1
The failure of an oil line leading to the oil pressure transducer which resulted in oil starvation and subsequent loss of engine power. 1
The pilot's decision to continue flight into deteriorating weather conditions in an airplane not maintained for instrument flight, which resulted in a loss of control due to spatial disorientation. 1
The noninstrument-rated pilot's encounter with instrument meteorological conditions and his decision to continue visual flight rules flight in instrument conditions, which resulted in a loss of control due to spatial disorientation. \r\n\r\n \r\n\r 1
Inadequate inspection and maintenance of the helicopter’s landing gear dampers, which resulted in ground resonance during helicopter shutdown.\r 1
A loss of engine power during initial climb for reasons that could not be determined because the postaccident engine examination did not reveal any anomalies that would have precluded normal operation. \r 1
The pilot’s improper landing flare, which resulted in a hard landing and subsequent main landing gear collapse. \r\n\r 1
The flight instructor’s improper recovery from a practice autorotation, which resulted in a hard landing.\r 1
The failure of the engine’s pneumatic fuel control line fitting, resulting in a loss of engine power. Contributing to the failure was the repeated loosening and re-torqueing of the fitting during required maintenance and inspection. \r 1
A buildup of pressure in the coffee filter package resulting in the release of hot coffee and grounds when the potlocking handle was raised, which resulted in 2nd and 3rd degree burns. 1
A hot liquid splashed from a meal box onto the flight attendant's hand, resulting in a 2nd degree burn. 1
The flight crew's inability to maintain airplane control during initial climb following deployment of the right thrust reverser for reasons that could not be determined because postaccident examination of the airframe and engine thrust reverser system did not reveal any anomalies. Contributing to the accident was the excessive thrust from the right engine with the thrust reverser deployed for reasons that could not be determined during postaccident examinations and testing. 1
The pilot's improper decision to enter an area of known adverse weather, which resulted in the loss of airplane control. Contributing to the accident was the air traffic controller's failure to provide critical weather information to the pilot to help him avoid the storm, as required by Federal Aviation Administration directives.\r\n\r 1
The pilot's failure to maintain adequate main rotor rpm while maneuvering at a low altitude, which resulted in an emergency landing on uneven terrain. 1
The pilot’s decision to approach rising mountainous terrain at too low an altitude to clear it and his subsequent attempt to climb, which exceeded the airplane’s critical angle-of-attack and resulted in a stall/spin.\r 1
The pilot's inadequate preflight planning for a takeoff in high-density altitude conditions and his decision to reduce power during the initial climb, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. 1
The airplane’s failure to attain rotation speed during the takeoff roll for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot’s delayed decision to abort the takeoff with insufficient runway remaining to stop. \r 1
The pilot's loss of control when encountering a downdraft during the initial climb after takeoff, resulting in a collision with brush and terrain.\r\n\r\n\r\n\r\n\r\n\r 1
The pilot's failure to attain the proper touchdown point that resulted in a runway overrun. 1
The pilot’s inadequate preflight planning, which resulted in his attempt to take off with insufficient climb performance to climb out of ground effect in the high-density altitude conditions. \r 1
The flight instructor’s delayed remedial action to correct the student pilot’s use of an excessive descent rate during a practice autorotation, which resulted in a hard landing.\r 1
The uncertificated pilot's loss of control while maneuvering at low altitude. 1
The pilot's delayed remedial action and failure to maintain directional control. 1
The pilot's failure to monitor the environment and to maintain sufficient altitude to clear power lines during low altitude flight. 1
The pilot's loss of situational awareness during the takeoff roll resulting in a collision with a refrigeration trailer. 1
The pilot's inadequate flare and loss of directional control during landing. 1
The collapse of the nosewheel landing gear due to the disengagement of the nosewheel landing gear pin. Contributing to the accident was the failure of the main hydraulic system due to overpressurization for reasons that could not be determined during postaccident examination of the airplane. \r 1
The collapse of the left main landing gear during landing roll for reasons that could not be determined because the pilot would not make the airplane available for a postaccident examination. 1
The pilot’s improper engine start procedure, which resulted in an overspeed of the engine and main rotor drive system.\r\n\r 1
The loosening of a B-nut in the fuel system which resulted in a rapid, undetected fuel leak and subsequent fuel exhaustion. \r 1
The pilot’s improper landing flare in gusting wind conditions, his inadequate recovery from the subsequent bounced landing, and his decision to perform a go-around with insufficient airspeed to climb. 1
The loss of engine power during cruise flight due to the decoupling of the engine’s turbine and compressor sections. Contributing to the decoupling was the excessive wear of the turbine-to-compressor coupling components due maintenance personnel’s placement of an incorrect shim during a compressor section overhaul and a latent misalignment within the exhaust collector.\r 1
The pilot's loss of control while landing the tailwheel-equipped airplane in a quartering tailwind. A factor in the accident was the changing wind conditions. 1
The pilot's failure to maintain airspeed while performing an emergency landing, which led to the airplane exceeding its critical angle-of-attack and experiencing a subsequent aerodynamic stall. Contributing to the accident was a partial loss of engine power for reasons that could not be determined during postaccident examinations. 1
The pilot's improper preflight planning, which led to a loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's loss of airplane control during the forced landing. 1
The pilot's loss of airplane control while intentionally maneuvering close to the ground, which resulted in the airplane exceeding its critical angle of attack in a steep bank and entering an accelerated stall. 1
The failure of the engine’s No. 1 piston connecting rod retaining bolts due to fatigue, which resulted in a total loss of engine power during cruise flight. \r\n\r 1
The failure of the pilots to maintain airspeed while maneuvering, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the loss of engine power for a reason that could not be determined by the postaccident examination, which was limited due to impact damage. \r 1
A partial loss of engine power during the initial climb after takeoff for reasons that could not be determined due to the postaccident condition of the wreckage. Contributing to the accident was the pilots' decision to turn back to the airport, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall while maneuvering. \r\n\r\n\r\n\r 1
The nonhelicopter-rated pilot’s operation of the helicopter and its subsequent collision with trees during takeoff for reasons that could not be determined based on the available evidence. \r\n\r 1
The pilot's improper decision to attempt a takeoff with a tailwind and his failure to achieve the proper airspeed for liftoff, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall shortly after liftoff. 1
The pilot's loss of helicopter control for reasons that could not be determined based on the available information.\r\n\r 1
A loss of clamping load of the No. 5 cylinder crankcase through bolts due to maintenance personnel’s failure to properly torque the through bolts during recent maintenance, which resulted in displacement of the No. 2 bearing and the subsequent catastrophic engine failure. 1
The partial loss of engine power during takeoff due to the separation of the exhaust baffling, which resulted in a partial blockage of airflow to the engine. Contributing to the accident was maintenance personnel’s inadequate inspection of the exhaust system during the airplane’s most recent maintenance. 1
A partial loss of engine power due to a reduction in the No. 3 cylinder’s compression as a result of the exhaust valve not having consistent uniform contact with the cylinder head valve seat.\r 1
The failure of the No. 1 cylinder rod at the link pin. Contributing to the accident was oil starvation to the rod bearing due to the improper flushing of the oil cooler, which allowed metal and other debris in the oil to clog the drain and the led to the piston’s failure.
\r 1
The airplane's impact with terrain shortly after takeoff due to a physiological incapacitation of the pilot. 1
The pilot's failure to maintain airplane control while maneuvering for landing to an unlit runway in dark night conditions.\r\n\r 1
The pilot's failure to maintain a positive climb rate after takeoff due to spatial disorientation (somatogravic illusion). Contributing to the accident was the pilot's self-induced pressure to depart and his decision to depart in low-ceiling and low-visibility conditions. 1
The partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. \r 1
The pilot's failure to maintain directional control during landing in crosswind conditions, resulting in a loss of control and runway excursion. 1
The pilot's inadvertent retraction of the landing gear on the runway, which resulted in a landing gear collapse. 1
The inadvertent deployment of the skydiver's drogue chute when he exited the airplane, resulting in it contacting and damaging the horizontal stabilizer. 1
The pilot's failure to maintain the proper approach path, and his delayed remedial action, which resulted in a runway undershoot and collision with terrain prior to the runway. 1
The pilot's failure to apply carburetor heat prior to descending in atmospheric conditions conducive to serious icing at all power settings, which resulted in a total loss of engine power. 1
The noninstrument-rated pilot’s visual flight into instrument meteorological conditions, which resulted in his spatial disorientation and the subsequent loss of airplane control. \r 1
The pilot's fall from the balloon’s basket during touchdown in a field for reasons that could not be determined based on the available evidence, which resulted in his fatal injury. 1
The pilot's failure to maintain control of the airplane while braking during landing rollout. 1
The pilot's failure to maintain directional control during the landing roll resulting in a runway excursion and collision with hangars. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack while maneuvering, which resulted in a stall at too low an altitude to allow recovery. \r 1
The pilot's failure to maintain airspeed while turning at low altitude, which resulted in the airplane exceeding its critical angle-of-attack and entering an aerodynamic stall.\r\n\r 1
The pilot's failure to perform a go-around after receiving a modified landing clearance and his failure to maintain adequate airspeed while maneuvering to land, which resulted in the airplane exceeding its critical angle of attack in a steep bank and entering an accelerated stall at a low altitude. \r\n\r 1
The pilot's incapacitation and subsequent loss of airplane control due to heat exhaustion. 1
The pilot's selection of unsuitable terrain for takeoff, which resulted in a jammed elevator and subsequent loss of control and collision with terrain. 1
The balloon’s hard landing due to a high surface wind and downdraft, which resulted in the pilot sustaining a serious leg injury.\r 1
The pilot's inadequate compensation for wind conditions, and improper recovery from a bounced landing resulting in a loss of control and collision with terrain. 1
The pilot's failure to maintain directional control during the landing, which resulted in a runway excursion and collision with objects. 1
The loss of engine power for reasons that could not be determined because an examination of the engine did not reveal any anomalies that would have precluded normal operation.\r 1
The flight crew's failure to properly use the before start checklist, to monitor the airplane's motion, and to see and avoid objects around the airplane, which resulted in an inadvertent roll into a ground vehicle. 1
The pilot's failure to ensure adequate fuel was onboard to complete the flight, which resulted in fuel exhaustion and the subsequent loss of engine power. Contributing to the accident was the improperly calibrated fuel quantity indication system. 1
The total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
The pilot's early rotation of the airplane and his failure to attain a positive climb rate during takeoff with the airplane near its aft center of gravity limit from a runway with little margin for error. 1
The flight instructor's delayed remedial action to arrest the descent rate, which resulted in a running landing, the left skid catching rough terrain, and the main rotor blades impacting the ground. 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and a collision with terrain. 1
The pilot's improper decision to attempt flight with an unairworthy airplane and improper starting procedure that resulted in an uncontrolled takeoff without the pilot aboard. Contributing was the inoperative airplane battery/engine starter. 1
The undetected fatigue cracks in the engine and nose landing gear (NLG) strut mount assembly, which prevented the proper alignment of the NLG after it was extended and the pilots from being able to maintain directional control after touchdown. 1
The pilot's failure to maintain pitch control during the landing touchdown, resulting in a hard landing. 1
Following a bird strike during takeoff, the pilot's decision to land without sufficient runway remaining to safely stop the airplane, which resulted in an over-run, collision with terrain, and nose over. 1
A total loss of engine power due to insufficient lubrication to the engine's No. 2 bearing, which resulted in the failure of the bearing and a subsequent forced landing.\r 1
The pilot's failure to maintain adequate distance from surrounding terrain during the takeoff sequence, which resulted in the airplane contacting the terrain, prematurely becoming airborne, and subsequently entering an aerodynamic stall. 1
The total loss of engine power due to fuel starvation because the available fuel shifted within the tanks due to an abrupt nose-low maneuver to avoid an obstacle, which resulted in a hard forced landing. 1
The pilot’s exhaustion of the airplane’s fuel supply, which resulted in a total loss of engine power. Contributing to the outcome was the pilot’s failure to secure the engine before the forced landing.\r 1
The student pilot's improper decision to conduct a flight in dark night conditions without a solo night flight endorsement and his subsequent loss of airplane control. 1
The flight crew's failure to visually ensure that the cabin door locking pin was in place before takeoff. 1
The pilot’s failure to maintain clearance from wires during takeoff due to his impairment from alcohol use. \r 1
The pilot’s failure to maintain airspeed and airplane control following a loss of engine power during cruise flight. Contributing to the accident was the installation of ignition system coils that were not engine-manufacturer replacement parts, which subsequently failed and resulted in the loss of engine power. 1
The partial loss of engine power due to a degraded cylinder exhaust valve seal, which resulted in low cylinder compression. 1
A loss of engine power due to three of the engine valve adjustment mechanisms backing out, which resulted from improper maintenance.\r 1
The pilot's failure to conduct helicopter performance planning, which resulted in an uncontrolled descent and impact with a truck and terrain during takeoff from an elevated platform. 1
The pilot's failure to use the mixture control to override a throttle anomaly and reduce engine power, which resulted in excessive airspeed upon landing and a subsequent runway overrun. Contributing to the accident was the pilot’s inability to reduce the engine power via the throttle control for reasons that could not be determined because a postaccident examination and test run of the engine revealed no anomalies. 1
A partial loss of engine power due to oil starvation. Contributing was the flight instructor's failure to maintain control of the airplane during an aborted emergency landing, and his delayed decision to deploy the airplane's parachute system. 1
The pilot's failure to attain adequate airspeed during initial climb after takeoff, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's improper decision to continue a takeoff even though the airplane was not airborne by the planned takeoff decision point. 1
The pilot's failure to maintain pitch control during the landing roll, resulting in a nose over. 1
The non-helicopter rated pilot's improper landing flare, which resulted in impact with terrain. 1
The pilot's failure to maintain control of the airplane while attempting to close an open cabin door, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
The pilot’s improper conduct of a precautionary landing, which resulted in abnormal water contact that damaged the hull.\r 1
The loss of engine power for reasons that could not be determined based on the available evidence and the postaccident engine examination, which led to a forced landing on unsuitable terrain due to the pilot’s decision not to deploy the ballistic parachute when sufficient altitude was available to do so. 1
The pilot's failure to maintain directional control during the takeoff roll, resulting in a collision with terrain. 1
The pilot’s loss of control while landing resulting in a runway excursion and ground loop.\r 1
The pilot's failure to maintain rotor rpm, resulting in an uncontrolled descent and collision with trees. 1
The failure of the student pilot to ensure that the experimental seaplane was airworthy prior to take off. 1
The pilot's decision to initiate and continue visual flight into instrument meteorological conditions, which resulted in a loss of situational awareness and controlled flight into terrain. Contributing to the accident were the company's failure to follow its operational control and flight release procedures and its inadequate training and oversight of operational control personnel. Also contributing to the accident was the Federal Aviation Administration's failure to hold the company accountable for correcting known regulatory deficiencies and ensuring that it complied with its operational control procedures. 1
The pilot’s loss of directional control after aborting the takeoff due to a grinding noise coming from the main rotor area, which resulted in a runway excursion. 1
Failure of the left landing gear actuator for reasons that could not be determined because the actuator was not made available for examination. 1
The pilot's failure to maintain/attain adequate airspeed and attitude during landing that resulted in a hard landing. Contributing was the pilot's diverted attention to air traffic and the reduction of perceptible audio cues due to noise attenuating headsets. 1
The pilot's loss of airplane control following the loss of power in the left engine; the reason for the loss of power could not be determined during postaccident engine examination. 1
The pilot's inaccurate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and a collision with terrain. 1
The pilot's decision to continue the approach after realizing the intended parameters were not attainable, resulting in a runway over-shoot, a loss of control on the ground and the consequent collision with trees. 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and impact with terrain. 1
The balloon pilot’s deliberate hard landing to avoid power lines and trees, which resulted in serious passenger injuries.\r 1
The failure of a connecting rod bearing, which resulted in a loss of engine power.\r\n
\r 1
The engine's inability to produce full-rated power due to wear on internal engine components, which resulted in a loss of altitude and subsequent landing on uneven terrain. Contributing to the accident was the airplane owner's failure to maintain the engine in accordance with the manufacturer's recommended guidance. 1
The pilot's failure to ensure that the landing gear was in the down and locked position before touchdown, which resulted in a landing with the gear in transit. 1
The pilot’s delayed decision to reject the takeoff, which resulted in a runway overrun. Contributing to the accident was the pilot’s failure to properly configure the flaps for maximum takeoff performance with the airplane near its maximum gross weight. \r 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine found no mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot's selection of unsuitable terrain for takeoff based on the runway and density altitude conditions, which resulted in a runway excursion and impact with terrain. 1
A total loss of engine power due to fuel starvation during cruise flight. Contributing to the accident was the pilot’s inadequate preflight fuel planning. 1
The pilot’s failure to maintain a proper descent rate, which resulted in a hard landing.\r 1
The pilot's failure to maintain clearance from trees while intentionally maneuvering close to the ground.\r\n\r 1
The pilot's decision to land with insufficient obstacle clearance.\r\n\r\nThe pilot's failure to maintain directional control after landing resulting in a collision with terrain. 1
The helicopter’s reduction in aerodynamic lift while operating in variable wind conditions for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. 1
A total loss of engine power due to the fatigue failure of the No. 6 cylinder piston pin. 1
A leaking fuel discharge fitting, which resulted in a partial loss of engine power and an off-airport, gear-up landing.\r 1
The pilot's failure to extend the landing gear prior to landing, which resulted in substantial damage to the fuselage during landing. Contributing to the accident was the pilot's diverted attention to another airplane in the vicinity and that he inaccurately perceived the gear warning horn annunciator as the TCAS annunciator. 1
The pilot's loss of directional control during takeoff in gusty crosswind conditions. 1
Maintenance personnel’s failure to tighten a fuel line, which resulted in a loss of fuel pressure and a subsequent loss of engine power during cruise flight and an off-airport landing and collision with obstacles. 1
The student pilot's failure to maintain pitch control resulting in a hard landing and damage to the airplane firewall. 1
The low flight time pilot's inadequate in-flight fuel planning, which resulted in fuel exhaustion, a loss of engine power, and an off-airport landing in rough terrain. 1
The loss of engine power during an agricultural application flight due to a cylinder failure. \r 1
A total loss of engine power due to an excessively rich fuel mixture as a result of the improper adjustment of the fuel pump aneroid. 1
The Captain's decision to taxi on a closed taxiway, which resulted in a collision with a parked construction vehicle. Contributing to the accident was a ground crew employee's decision to move barricades from the closed taxiway. 1
The gate lead/pushback driver's failure to recognize that the provisioning truck was within the safety zone of the gate during his walkaround due to distractions, which resulted in the subsequent collision between the airplane and the truck. Contributing to the collision was the provisioning truck driver's failure to recognize he was parked in the safety zone of an active gate adjacent to his assigned gate, and the guide agent's improper assumption that the safety zone was properly cleared by the gate lead/pushback driver. 1
The pilot's improper decision to intentionally fly the helicopter at a low altitude and his subsequent failure to maintain clearance from a power line. 1
The pilot's failure to attain and maintain sufficient airspeed during takeoff which resulted in a descent, loss of directional control, and a runway excursion. 1
The pilot’s inadequate preflight planning, which resulted in his attempt to take off for the agricultural application flight with the airplane over its maximum gross weight in high-density altitude conditions and led to the airplane’s degraded climb performance and subsequent impact with terrain. 1
The separation of the left wheel from the landing gear assembly during the landing touchdown, which precipitated a loss of directional control, runway excursion, and nose over. 1
The pilot’s failure to maintain altitude and a level attitude while hovering over water at night during an external load operation, which resulted in the helicopter’s main rotor contacting the surface of the water. \r 1
The pilot's failure to observe the runway environment while operating in the traffic pattern and his subsequent failure to maintain clearance from a lawnmower on the runway during the landing roll. Contributing to the accident was the lawnmower operator's decision to remain on the runway while troubleshooting the mowing equipment without monitoring the airport's common traffic advisory frequency. 1
The pilot’s loss of airplane control during takeoff, which resulted from his impairment or incapacitation due to an acute cardiac event. 1
The pilot's failure to maintain control of the airplane during final approach, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. 1
A partial loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or anomalies that would have precluded normal operation. 1
Oil starvation that led to the failure of the No. 5 connecting rod and a subsequent loss of engine power. 1
The loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot's improper adjustment of the propeller blade angle, which resulted in inadequate engine thrust, and his decision to continue the takeoff despite the excessively long takeoff roll. 1
The pilot's inability to see and avoid power lines that were low to the ground and a green color that blended with the background crops. 1
The pilot’s failure to use the fuel boost pump following the loss of engine power and the fuel system’s inadequate design, which did not allow for equalization of fuel between the fuel tanks and led to a total loss of engine power due to fuel starvation and subsequent forced landing.\r 1
The airplane's encounter with moderate turbulence during descent, which resulted in a serious injury to a flight attendant who was not securely seated. Contributing to the accident was the flight attendant's decision to continue to secure items before the flight crew made an announcement that it was safe to continue with the service activities. 1
The pilot’s inadequate compensation for a crosswind during landing, which resulted in a side load application to the nose landing gear and its subsequent collapse. \r 1
The pilot’s decision to use an excessive, unapproved flap setting for takeoff, which significantly increased the induced drag and resulted in an aerodynamic stall when the airplane flew out of ground effect.\r 1
A partial loss of engine power during initial climb due to the failure of a magneto. Contributing to the accident was the pilot's decision to operate the airplane without a current annual inspection. 1
The pilot's failure to maintain directional control during the landing roll, and excessive use of brakes, which resulted in a runway excursion and nose over. 1
The flight crew's continued flight into a closing gap between areas of thunderstorm activity and their failure to maintain the required lateral separation from the thunderstorms, which resulted in the airplane's encounter with hail and subsequent airplane damage.\r\n\r\nContributing to the incident were the company flight dispatcher's failure to provide complete and timely weather information to the flight crew and the Denver air route traffic controller's failure to provide significant pilot weather report information and alert the pilots of existing and worsening hazardous weather along their flight route, as required by Federal Aviation directives, both of which led to the airplane's encounter with hail. 1
The ultralight airplane’s encounter with a downdraft in mountainous terrain, which resulted in a descent into trees. 1
The noncertificated pilot's impairment due to alcohol consumption, which resulted in his failure to maintain clearance from a tree. 1
The pilot's failure to maintain adequate airspeed and/or appropriate pitch attitude during a banner pickup, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall/spin at too low an altitude to allow recovery. 1
A failure of the helicopter's hydraulic flight control systems for reasons that could not be determined due to the fire damage, and the pilot's inability to turn off the hydraulic system to relieve control pressure. 1
The pilot's inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
The non-certificated pilot's inadequate preflight inspection, which resulted in a loss of directional control during takeoff, and collision with trees during the subsequent rejected takeoff. 1
The pilot did not properly brace herself during the landing, which resulted in a broken ankle and leg. 1
The pilot's failure to properly position the fuel selector, which resulted in a total loss of engine power due to fuel starvation. Contributing to the severity of the accident was the pilot's failure to select an appropriate location for a forced landing, which resulted in the airplane impacting trees. Contributing to the accident was the air traffic controller's failure to provide the pilot accurate information on nearby emergency airport and airfields and the pilot's failure to properly follow the airplane's emergency procedures in the Pilot's Operating Handbook that would have led him to properly position the fuel selector and restore fuel flow to the engine. 1
A total loss of engine power for reasons that could not be determined because a postaccident examination of the engine and fuel system found no mechanical anomalies that would have precluded normal operation. 1
The pilot's failure to maintain direction control during takeoff, and the pilot's failure to ensure that the canopy of the airplane was secured and locked prior to departure. 1
The pilot's failure to maintain adequate airspeed, which resulted in the airplane exceeding its critical angle of attack while maneuvering and a subsequent aerodynamic stall. 1
The failure of the right brake hydraulic line during taxi due to fatigue, which caused a loss of hydraulic fluid and rendered the brake inoperative. \r\n\r 1
The total loss of engine power for reasons that could not be determined during postaccident examination of the airplane and engine. Also causal to the accident was the pilot's decision to attempt to reach the farthest runway and land into the wind instead of conducting a crosswind or downwind landing at a closer runway following the loss of engine power. 1
The pilot’s loss of airplane control while maneuvering with the airplane near its maximum gross weight, which resulted in the airplane exceeding its critical angle-of-attack and entering an aerodynamic stall. \r\n\r 1
The pilot’s failure to maintain adequate airspeed during a high-pitch, steep right turn, which resulted in the exceedance of the airplane’s critical angle-of-attack and a subsequent aerodynamic stall, loss of control, and impact with terrain. Contributing to the accident was the airplane’s design, which resulted in poor yaw stability at low airspeed.\r\n\r 1
The pilot's improper pitch control during the landing, which resulted in the propeller striking the runway, and his failure to maintain adequate airspeed during the subsequent go-around, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall at a low altitude. 1
A partial loss of engine power due to a faulty electrical wiring crimp in the engine’s ignition system.\r 1
The intermittent partial loss of engine power, which resulted in a lower-than-expected approach glidepath and impact with terrain short of the runway. The reason for the intermittent partial loss of engine power could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r 1
The flight instructor's misperception of the helicopter's altitude in relation to the runway surface during a low altitude maneuver, resulting in ground impact. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a collision with terrain. 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and a forced landing on a road where the left wing impacted vegetation and sustained substantial damage. 1
A total loss of engine power for reasons that could not be determined because postimpact damage precluded a thorough examination of the airplane. Contributing to the accident was the pilot's failure to maintain control following the loss of engine power, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall/spin. 1
The engine failure due to several loose, damaged cylinder stud nuts and hold-down bolts. Contributing to the accident was maintenance personnel’s failure to detect that the cylinder nuts and hold-down bolts were not properly secured during the engine’s most recent inspection. 1
The pilot's failure to ensure that the passengers remained secure in the basket during deflation after landing, which resulted in a passenger falling out of the basket and sustaining a serious injury when a wind gust caught the envelope and tipped the basket on its side. 1
The pilot receiving instruction's use of an excessive pitch attitude during takeoff with the airplane near its maximum gross weight in hot and humid conditions, which degraded the airplane’s climb performance and resulted in a collision with obstacles during an off-airport landing. Contributing to the accident was the flight instructor's delayed remedial action. 1
The noninstrument-rated pilot's decision to conduct a visual flight in instrument meteorological conditions, which resulted in controlled flight into mountainous terrain. 1
The pilot's inability to maintain control of the airplane as a result of incapacitation by drug effects or an acute cardiac event. 1
The total loss of engine power due to carburetor icing. \r 1
The improper installation of the fuel supply line fitting at the fuel manifold, which resulted in the line loosening in-flight, fuel leakage, and a subsequent total loss of engine power. 1
The pilot’s failure to establish a proper airspeed during takeoff with the airplane near its maximum gross weight and with a quartering tailwind. 1
A severe propeller vibration due to the pilot's improper installation of the propeller spacer assembly, which necessitated an engine shutdown, an off-airport landing, and a collision with a sprinkler system. 1
An encounter with a wind gust during ground maneuvering and the captain’s improper flight control positioning to account for wind conditions, which resulted in the airplane being blown onto its left wing.\r 1
Undetermined based on the available evidence.\r\n\r\n\r\n\r 1
The pilot’s failure to maintain glider control when it encountered a strong downdraft while maneuvering near a ridgeline. \r 1
The student pilot landed with variable wind conditions, which resulted in an in-flight loss of control and subsequent impact with terrain. 1
A loss of engine power while maneuvering due to water contamination in the fuel. 1
The pilot's failure to monitor the landing environment while operating in a confined off-airport site resulting in a wire strike and substantial damage to the helicopter. 1
The pilot's failure to maintain pitch attitude which resulted in an aerodynamic stall, hard landing and a loss of directional control. 1
The pilot's inadequate decision to continue the approach, which resulted in a long landing and insufficient runway remaining to stop the airplane before it departed the end of the runway. 1
(1) the pilot's decision to continue visual flight into an area of instrument meteorological conditions, which resulted in his geographic disorientation and controlled flight into terrain; and (2) Promech's company culture, which tacitly endorsed flying in hazardous weather and failed to manage the risks associated with the competitive pressures affecting Ketchikan-area air tour operators; its lack of a formal safety program; and its inadequate operational control of flight releases.\r\n\r 1
The student pilot's incorrect pitch and roll rate control inputs which resulted in an aerodynamic stall and incipient spin at a low altitude. 1
The pilot's failure to maintain sufficient airspeed to prevent an inadvertent aerodynamic stall, and impact with terrain. 1
The student pilot's failure to maintain pitch control during the landing, resulting in a hard landing. 1
The pilot's failure to secure the iPad during flight, resulting in an inadvertent cyclic input, and collision with terrain. 1
The pilot’s incapacitation in flight due to a cardiovascular event.\r 1
The pilot's inadequate selection of a take-off area, resulting in a collision with obstacles and a loss of directional control. 1
The pilot's failure to maintain directional control during landing in crosswind conditions, which resulted in a runway excursion and an impact with an airport sign. 1
The pilot's perception that the airplane was not climbing normally, which precipitated an aborted landing with insufficient runway remaining to stop the airplane safely. 1
The right main landing gear leg fracture, which resulted in the landing gear wheel separation and a runway excursion. 1
The pilot’s failure to maintain airplane control during a low-level aerobatic flight maneuver.\r 1
The pilot's improper recovery from a bounced landing, and his failure to maintain directional control. 1
The improper repair of the carburetor heat cable sheath to clamp joint, which prevented the proper operation of the carburetor heat and resulted in the loss of engine power. 1
The pilot's failure to maintain pitch control during landing, which resulted in a bounce and loss of control during landing, followed by a runway excursion, and collision with terrain during an attempt to abort the landing. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack while maneuvering, which resulted in a stall/spin at too low an altitude to allow recovery. Contributing to the accident was the pilot's improper fuel planning and his distraction by the loss of engine power due to fuel exhaustion. 1
The total loss of engine power due to the failure of the alternator drive coupling. Contributing to the accident was the pilot's inability to locate and navigate to a suitable forced landing site due to low cloud ceilings. 1
The pilot's failure to maintain directional control, which resulted in a runway excursion, and a collision with runway marking signs. 1
While taxiing as a flight of two, the pilot of the blue Beechcraft became distracted and impacted the red Beechcraft which had stopped. 1
The pilot's failure to maintain pitch control during the landing touchdown, resulting in a porpoise, and firewall damage. 1
The pilot's improper pitch control which resulted in a bounced landing, runway excursion, and collision with terrain. 1
The pilot's lack of awareness of the severity of the gusting winds, which led to the helicopter being pushed off of the oil platform by a wind gust during engine start. Contributing to the accident was the unavailability of a nearby weather monitoring system. 1
The loss of engine power due to a failure of a crankshaft idler gear shaft. 1
The pilot's decision to taxi behind a turbojet airplane into jet blast, which resulted in the airplane being blown off an active taxiway and flipped upside down onto terrain. 1
The engine overheating, which resulted in a partial loss of engine power, due to the pilot's operation of the engine with a higher-than-specified oil quantity level. 1
The flight instructor's decision to conduct a high altitude pinnacle landing without adequate power, which resulted in the helicopter impacting terrain during the approach. Contributing to the accident was the density altitude at the high altitude pinnacle landing site. 1
the flight attendant inadvertently slipped off a worn tread descending the crew rest ladder. 1
The pilot's selection of a departure runway of inadequate length for the density altitude, resulting in the airplane not gaining sufficient lift, departing the runway, and impacting terrain. 1
an inadvertent fall by the passenger while exiting the lavatory when the seat belt light was illuminated. 1
The pilot’s improper preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's use of improper procedures during an aborted landing, resulting in a runway excursion and a collision with a canal. 1
The pilot's inadequate pre-flight fuel planning resulting in fuel exhaustion and a collision with terrain. 1
The student pilot's loss of directional control during the landing roll, resulting in a runway excursion and collision with terrain. 1
The malfunction of the flap assembly, which resulted in a restriction of aileron control. Contributing to the accident was maintenance personnel’s inadequate inspection of a corroded flap control cable.\r 1
The pilot's failure to maintain directional control during the takeoff roll, resulting in a runway excursion, and collision with a fence. 1
The certified flight instructor (CFI) did not maintain directional control during a downwind emergency running landing to soft muddy terrain, which resulted in a dynamic rollover. Contributing to the accident was the CFI's delayed or insufficient remedial action when the pilot receiving instruction did not control the rotor RPM during hovering flight. 1
Pilot's failure to maintain airspeed while maneuvering during the initial climb, which resulted in a loss of lift and subsequent off airport landing. Contributing to the accident was the pilot's failure to abort the takeoff after recognizing the airplane's slow acceleration. 1
The pilot's failure to maintain directional control while landing with a quartering tailwind. \r\n\r 1
The flight instructor's inaccurate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
A total loss of engine power for reasons that could not be determined because of insufficient evidence found during postaccident examination of the airframe and engine.\r\n\r 1
The pilot's delayed decision to go around after realizing that the airplane’s airspeed and altitude were too high, which resulted in an inadequate flare and bounced landing and a subsequent go-around in high-density altitude conditions. 1
The powered-lift aircraft's departure from controlled flight for reasons that could not be determined from the available information. 1
The pilot's loss of airplane control during initial climb after takeoff for reasons that could not be determined because an examination of the airframe and engine did not reveal any preimpact anomalies. 1
A total loss of engine power during approach for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation. 1
The failure of the brake master cylinder which resulted in a loss of brake pressure and the subsequent loss of directional control during the landing roll. 1
The pilot failed to maintain clearance from trees while maneuvering to land at night, which resulted in a collision with terrain/objects. A factor contributing to the accident was the lack of oversight by ATC; failing to insure that the fully operational VASI was turned on during the hours of darkness. 1
The pilot's delayed completion of the before landing checklist, including the extension of the landing gear, during an approaching thunderstorm, which resulted in a landing with the landing gear in transit and the subsequent collapse of the landing gear. 1
The non-instrument-rated pilot's visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and loss of helicopter control. Contributing to the accident was the pilot's impairment by high-dose opioid use. 1
The pilot's inability to maintain directional control during takeoff, which resulted in a roll over. Contributing to the loss of control was the pilot's failure to disengage the main rotor brake prior to takeoff. 1
The pilot's failure to monitor the airplane's glide path during the final approach, which resulted in a low approach path and impact with terrain. 1
The pilot’s failure to maintain airplane control after the cockpit canopy opened during initial climb. Contributing to the accident was the pilot’s failure to securely lock the canopy before takeoff.\r 1
Maintenance personnel’s improper reassembly of the engine during overhaul, which led to the failure of the supercharger-blower due to a lack of lubrication and the subsequent total loss of engine power during takeoff. 1
Oil starvation due to preignition in the No. 5 cylinder as a result of failed spark plugs; the top and sides of the piston head were eroded, which allowed the exhaust gases caused by the preignition to pressurize the crankcase and force engine oil out of the breather tube. 1
The pilot's improper fuel management and preflight planning, which resulted in the total loss of engine power due to fuel exhaustion and a forced landing in a field where the airplane nosed over. 1
The airplane's collision with a deer on the unfenced runway during the takeoff roll. Contributing to the accident is the airport's failure to establish a continuous fence between the runway and the nature conservancy. 1
The pilot's failure to maintain clearance from terrain during low-level airwork, which resulted in uncontrolled collision with terrain. Contributing to the accident was the pilot's impairment from the combined effects of butalbital and codeine. 1
A total loss of engine power during cruise flight for reasons that could not be determined based on the available evidence. 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in the airplane's left main landing gear impacting an unknown object, and subsequent collapse during landing. 1
An inflight bird strike, which resulted in wing spar damage. 1
The pilot's failure to maintain directional control of the airplane during the landing roll in variable and gusting wind conditions. 1
The student pilot's failure to maintain directional control during the takeoff roll, resulting in a runway excursion, and a collision with terrain. 1
The pilot's improper compensation for gusty wind conditions which resulted in impact with terrain short of the runway. 1
The pilot's failure to maintain directional control during takeoff, resulting in a runway excursion and collision with terrain. 1
The pilot's failure to maintain directional control while taking off in a crosswind, which resulted in a collision with a tree. 1
The pilots’ failure to extend the landing gear before landing. Contributing to the accident was the pilots’ failure to complete the Before Landing checklist. 1
The flight instructor's inadequate preflight inspection of the fuel system resulting in a total loss of engine power due to fuel contamination. 1
The airplane’s unmanageable right yaw during takeoff for reasons that could not be determined because postaccident examination of the rudder and rudder assembly did not reveal any anomalies that would have precluded normal operation. 1
inadvertent contact by beverage cart during cabin service. 1
The pilot's inadequate preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel starvation. 1
Maintenance personnel's improper installation of the propeller governor, which resulted in damage to the governor drive gear and its subsequent failure and a subsequent loss of engine power. 1
The approach controller's failure to provide an appropriate resolution to the conflict between the F-16 and the Cessna. Contributing to the accident were the inherent limitations of the see-and-avoid concept, resulting in both pilots' inability to take evasive action in time to avert the collision. 1
The pilot's failure to maintain clearance from a boat while landing. \r\n\r\n \r\n\r 1
The pilot's improper decision making in adverse weather conditions, which resulted in an encounter with weather and impact with terrain. 1
The pilot's inadequate preflight planning resulting in the airplane not having adequate performance to climb and clear the trees off the end of the dirt runway. 1
The pilot's improper use of pitch control during an instructional maneuver, which resulted in a tail strike during landing. 1
The pilot failed to maintain obstacle clearance, and the airplane struck a transmission line wire during aerial application operations. 1
The pilot's failure to maintain adequate airspeed, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall/spin. 1
A loss of thrust on takeoff for reasons that could not be determined, because postaccident examination of the engine and propeller assembly did not reveal any mechanical anomalies that would have precluded normal operation. 1
The pilots' failure to apply carburetor heat during the approach for landing, which resulted in a total loss of engine power due to carburetor icing. 1
The pilot’s failure to maintain directional control of the airplane during the landing with a light quartering tailwind, which resulted in the failure of the landing gear and a subsequent ground loop.\r\n\r 1
The pilot's failure to maintain airplane control during a balked landing and attempted go-around in dark night conditions and without a landing light, which resulted in collision with terrain. 1
The noninstrument-rated pilot’s decision to continue visual flight into instrument meteorological conditions, which resulted in his failure to maintain clearance from mountainous terrain.\r\n\r 1
Excessive particulate contamination in the fuel tank, which resulted in the interruption of the fuel flow to the engine and a partial loss of power. The source of the contamination could not be determined based on the available information. 1
The pilot's improper flare, which resulted in a hard landing and subsequent loss of directional control. 1
The pilot's loss of directional control during the landing roll in gusty wind conditions which resulted in a ground loop and impact with terrain. 1
The pilot’s inadequate preflight planning and his subsequent decision to attempt to climb over rising terrain with the helicopter over maximum gross weight while operating in high-density altitude conditions with a tailwind, which resulted in its inability to maintain a positive climb rate and a subsequent impact with terrain. \r 1
The pilot's failure to see and avoid a guy wire, which resulted in contact with the wire and subsequent collision with terrain. 1
The total loss of engine power due to the failure of the crankshaft, which resulted from a mechanic's failure to properly torque the engine cylinder through bolts. 1
The airplane's inability to takeoff for reasons that could not be determined because postaccident examination of the airplane revealed no anomalies. The aborted takeoff resulted in a runway overrun and impact with a fence. 1
A loss of hydraulic fluid due to a fractured left main landing gear hydraulic actuator as a result of a fatigue crack, which led to the landing gear collapsing upon touchdown.\r\n\r 1
The pilot’s decision to abort the takeoff with insufficient runway remaining, which resulted in a runway excursion. 1
Abnormal ground contact during a 180 degree autorotation, resulting in a severed tail rotor driveshaft by a main rotor blade. A factor contributing to the accident was the rotor blowback condition due to the aft tilting of the main rotor disk. 1
The pilot's failure to maintain control during a precautionary landing following a total loss of power to one engine. The reason for the loss of engine power could not be determined based on available information.\r 1
The student pilot's failure to arrest the descent in a timely manner and the flight instructor's failure to safely intervene in the routine training maneuver for reasons that could not be determined based on the information available. 1
The student/instructed pilot lost directional control during the landing roll, resulting in a runway excursion, and ground loop. 1
The pilot's inability to maintain control of the weight-shift control aircraft during initial climb due to his impairment from ethanol, methamphetamine, cocaine, and marijuana.\r 1
A gouge in the right brake master cylinder piston O-ring, which resulted in a loss of brake pressure and reduced effectiveness after landing. Contributing to the accident was the pilot’s decision to operate the airplane with an ongoing brake issue. 1
The failure of the taxiway surface due to a sink hole, which resulted in the right main landing gear sinking into terrain causing substantial damage to the fuselage. 1
The pilot’s inadequate preflight inspection and fuel planning, which resulted in a loss of engine power due to fuel exhaustion.\r 1
The pilot's improper pitch control which resulted in a hard landing. A factor contributing to the accident was the pilot's improper recovery from a bounced landing. 1
Airbus Helicopters' dual-hydraulic AS350 B3e helicopter's (1) preflight hydraulic check, which depleted hydraulic pressure in the tail rotor hydraulic circuit, and (2) lack of salient alerting to the pilot that hydraulic pressure was not restored before takeoff. Such alerting might have cued the pilot to his failure to reset the yaw servo hydraulic switch to its correct position during the preflight hydraulic check, which resulted in a lack of hydraulic boost to the pedal controls, high pedal forces, and a subsequent loss of control after takeoff. Contributing to the accident was the pilot's failure to perform a hover check after liftoff, which would have alerted him to the pedal control anomaly at an altitude that could have allowed him to safely land the helicopter. Contributing to the severity of the injuries was the helicopter's fuel system, which was not crash resistant and facilitated a fuel-fed postcrash fire. 1
The pilot's failure to maintain directional control during the landing roll which resulted in a ground loop. 1
The pilot's failure to maintain adequate clearance from power lines while maneuvering in a canyon. 1
The pilot's failure to maintain control of the airplane following a loss of engine power during initial climb after takeoff, which resulted in the wing's critical angle-of-attack being exceeded and a subsequent aerodynamic stall. Also causal was the pilot's inadequate preflight inspection of the airplane's fuel system, which resulted in the loss of engine power due to water contamination. 1
The student pilot's disorientation in mountainous terrain and course deviation into a canyon, which resulted in the airplane's inability to out climb terrain and a forced landing. 1
The pilot's failure to maintain adequate airspeed while turning onto the final approach leg of the traffic pattern, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. 1
The pilot's loss of directional control during the landing roll, which resulted in a runway excursion, and a ground loop. 1
The loss of translation/rotational power between the engine and the transmission due to the severe wear of the forward spline portion of the lower coupling drive shaft. The reason for the severe wear of the forward spline could not be definitively determined due to fire damage and the loss of associated components, which were not located during the investigation. 1
Undetermined because examination of the airplane wreckage did not reveal any anomalies that would have precluded normal operation. 1
A partial loss of engine power for reasons that could not be determined during postaccident examinations. 1
**This report was modified on 4/21/2016. Please see the public docket for this accident for more information.**\r\n\r\nThe failure of the Balony balloon pilot to see and avoid the Balloon Works balloon during an ascent, which resulted in the basket of the Balony balloon colliding vertically with the envelope of the Balloon Works balloon. 1
The pilot’s improper burner control, which allowed the balloon’s envelope to cool, and the balloon’s subsequent encounter with a drop in wind velocity during a high
wind landing approach, both of which resulted in the balloon’s descent rate increasing too rapidly for the pilot to arrest it and led to a hard landing.\r 1
The pilot's improper level off and flare, which resulted in a bounced landing and firewall damage. 1
The pilot's failure to monitor the flight environment for adequate terrain/obstacle clearance during takeoff, which resulted in the inflight collision with power transmission line wires. 1
The partial loss of engine power after takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r 1
A loss of engine power due to fuel exhaustion. Contributing to the accident was the unsnapped fuel bladder, which resulted in an inaccurate fuel quantity indication, and the pilot's inadequate preflight fuel planning, during which he relied solely on the fuel gauges to determine the amount of fuel on board. 1
The pilot’s loss of airplane control for reasons that could not be determined because an examination of the airplane did not reveal any preimpact abnormalities. \r 1
The pilot's delayed application of carburetor heat, which resulted in the total loss of engine power due to carburetor icing during cruise flight. 1
The student pilot's improper flare during landing which resulted in abnormal runway contact and damage to the firewall. 1
The pilot's inadequate fuel inspection during his preflight fuel performance planning task, resulting in fuel exhaustion en route, and an emergency landing and collision with terrain. 1
The glider pilot's failure to connect the elevator to the elevator control rod during the assembly process, resulting in a loss of control, and a collision with terrain during takeoff. 1
The pilot's decision to fly at a low altitude when he was aware that there were wires in the area which resulted in the helicopter contacting a wire. 1
The pilot's failure to manage the fuel system properly during a banner tow operation resulting in a loss of engine power due to fuel starvation. 1
The pilot's unstabilized approach and delayed remedial action, which resulted in a porpoise during landing. Also causal to the accident was the pilot’s exceedance of the airplane's critical angle-of-attack during the subsequent aborted landing, which resulted in a low altitude stall/spin. 1
The pilot’s ostentatious low-altitude aerobatic display, which resulted in an aerodynamic stall/spin when he exceeded the airplane’s critical angle of attack. Contributing to the accident was the pilot’s impairment due to alcohol and drugs. \r 1
The pilot's failure to maintain proper pitch control during touchdown, which resulted in a nose over and impact with terrain. 1
The failure of the right main landing gear down-lock micro switch, which resulted in a landing gear collapse during landing, and the pilot/owner's unfamiliarity with the emergency landing gear extension procedure. Contributing to the accident was the flight instructor's lack of experience in this make and model airplane and unfamiliarity with the emergency landing gear extension procedure. 1
The pilot's failure to maintain clearance from the powerline during an aerial application operations. 1
The total loss of engine power due to carburetor icing, which resulted from the pilot’s failure to use carburetor heat.\r 1
The pilot’s loss of gyroplane control while maneuvering at low altitude.\r\n\r 1
The student pilot's inadequate preflight inspection of the fuel system, which resulted in a total loss of engine power due to fuel contamination. 1
The pilot's landing with a tailwind at an excessive speed, which resulted in a runway excursion, and collision with a ditch. 1
The pilot's failure to maintain a stabilized instrument approach, which resulted in a loss of control. 1
The pilot's failure to maintain glider control while attempting to conduct an off-airport landing, which resulted in an aerodynamic stall and impact with terrain. 1
The total loss of engine power due to carburetor icing. Contributing to the accident was the pilot's failure to maintain a proper approach speed during the forced landing, which resulted in impact with trees. 1
The pilot's inadequate preflight planning, and his subsequent failure to attain adequate altitude during takeoff, which resulted in a collision with a wire fence. 1
The pilot’s failure to maintain adequate airspeed during the initial climb after takeoff, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's decision to conduct the takeoff from a grass runway rather than a paved surface, and his decision to continue the takeoff after the airplane traveled into taller vegetation, which significantly increased the distance required to clear trees at the end of the runway. 1
The separation of the tail rotor gearbox from the tailboom attachment point due to overstress loads imposed by a tail rotor blade imbalance as the result of impact with an undetermined object during low-level flight operations.\r\n\r 1
The in-flight fatigue failure of the No. 4 cylinder barrel, which resulted in a total loss of engine power.\r 1
The pilot's failure to maintain glider control while attempting to land. 1
The student pilots failure to maintain a climb after takeoff, which resulted in an impact with terrain. 1
The pilot's loss of directional control during the landing roll, which resulted in a ground loop and impact with terrain. 1
An engine fire, which resulted from the overpriming of a hot engine. 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and collision with a fence. 1
The collapse of the landing gear for reasons that could not be determined based on the available information. 1
The pilot's failure to maintain airspeed and her exceedance of the airplane's critical angle-of-attack, which led to an aerodynamic stall, following a total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during final approach to landing, which resulted in an aerodynamic stall and impact with terrain. 1
The loss of tail rotor control due to a fractured pin in the tail rotor control system; the reason the pin fractured could not be determined as the fractured pin was lost in shipping. 1
The pilot's decision to continue to land at an unlighted airstrip, at night, after the landing light failed on approach, which resulted in a bounced landing, runway excursion, and collision with terrain. 1
An in-flight fire during initial climb due to the separation of the engine's turbocharger wastegate overboard exhaust tailpipe. Contributing to the accident was the owner's decision to not comply with a service bulletin that addressed the tailpipe separation. 1
Improper overhaul of the right magneto, which eliminated system redundancy, and resulted in a loss of engine power when the left magneto failed during aerobatic flight maneuvers. 1
The pilot's failure to maintain altitude during low-level aerobatic maneuvers. Contributing to the accident were the pilot's improper decision to attempt the low-level aerobatic maneuvers and his impairment due to psychiatric conditions and the medications he was using to treat them. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a collision with a fence. 1
The partial loss of right engine power for undetermined reasons with insufficient runway remaining for the aborted takeoff. 1
The pilot's failure to maintain airplane control following an engine problem for reasons that could not be determined because postaccident examination of both engines and the rudder revealed no malfunctions or anomalies that would have precluded normal operation. 1
The pilot's failure to properly calculate the fuel consumption rate and to properly monitor the fuel status in flight and his decision to continue the flight despite signs of an engine problem, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent forced landing. 1
The pilot's failure to maintain directional control during an aborted landing, which resulted in a runway excursion and an impact with shrubs. 1
The in-flight loss of engine oil after the oil filter separated from the engine adapter assembly because of an incorrect modification of the oil filter adapter assembly, which resulted in a precautionary landing in a field. 1
Abnormal runway contact which precipitated a loss of directional control and impact with water. 1
The flight instructor's improper use of pitch control during a demonstrated 180 degree autorotation which resulted in damage to the tail boom. 1
The pilot's failure to sufficiently lean the engine’s fuel-to-air mixture for the given density altitude, which resulted in reduced engine power output and the airplane’s inability to climb. 1
The pilot's failure to maintain directional control during landing in quartering tailwind conditions, which resulted in a runway excursion and a right main landing gear collapse. 1
A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. \r\n\r 1
The pilot's failure to level the wings during the landing flare, which resulted in the left wing striking the runway. 1
The pilot's attempted 180-degree return to the runway immediately after takeoff in dark night conditions, which resulted in collision with trees and terrain. Also causal was the pilot's inadequate preflight inspection, which resulted in a takeoff with little-to-no fuel on board the airplane. 1
The pilot’s failure to extend the landing gear before landing. Contributing to the accident were the pilot’s distraction during the downwind leg and his difficulty seeing the landing gear indicators due to the sun angle and shadows. \r 1
The pilot's attempt to start the engine by himself without properly securing the airplane. 1
The pilot's failure to maintain a proper descent rate during the attempted landing and the flight instructor's delayed attempt to execute a go-around, which resulted in a hard landing, failure of the left main landing gear, and subsequent loss of directional control. Contributing to the accident was an improperly welded landing gear tube. 1
The ground recovery team member's failure to secure a rescue rope during the helicopter loading process in steep terrain, resulting in the rope fouling the helicopter's main rotor system. 1
A loose oxygen line, which was not detected by maintenance personnel during a recent annual inspection, that allowed oxygen to escape and drain the oxygen canister more quickly than the pilot expected. This reduced the pilot's availability of supplemental oxygen and led to his experiencing hypoxia and the airplane subsequently flying on autopilot until it eventually lost power due to fuel starvation. 1
The pilot's failure to maintain directional control during the landing roll in windy conditions, resulting in a runway excursion and collision with a fence. 1
The noncertificated pilot’s failure to maintain adequate clearance from terrain for reasons that could not be determined based on the available evidence. \r 1
The pilot’s failure to use carburetor heat in cruise flight while operating in an area conducive to serious carburetor icing, which resulted in a loss of engine power and an off-airport landing. Contributing to the accident was the pilot's decision to continue flight toward rising mountainous terrain when the airplane could not maintain altitude. 1
The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion and a ground loop. 1
The pilot’s failure to ensure that the landing gear was down while on short final, his subsequent failure to conduct a go-around, and his loss of situational awareness of the airplane’s altitude above the runway while landing. \r 1
The pilot's failure to maintain pitch control during the landing which resulted in a bounced landing, and an aerodynamic stall during the attempted recovery. 1
The student pilot's improper decision to intentionally maneuver at low altitude while waving to people on the ground, which led to the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
The pilot's failure to maintain airplane control following a partial loss of engine power during initial climb. The reason for the partial loss of engine power could not be determined due to extensive postimpact damage. 1
The pilot decision to perform a precautionary landing to a field with obstacles which resulted in a ground loop. Contributing was the pilot’s inadequate fuel planning.\r\n\r\n\r 1
The pilot's failure to maintain pitch attitude, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall/spin. 1
The failure of the tail rotor driveshaft for reasons that could not be determined due to the mechanically and thermally deformed fracture surface. 1
A partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot's premature retraction of the wing flaps and his subsequent failure to maintain pitch control during an attempted go-around, which resulted in the airplane exceeding its critical angle-of-attack and an aerodynamic stall. Contributing to the accident were the pilot’s inadequate in-flight fuel planning; his internal pressure to reach the airport expediently due to low fuel, which led to a high and fast approach; and his subsequent decision to go around when low on fuel. 1
The pilot's improper fuel planning which resulted in fuel exhaustion, and loss of engine power. Additionally, the pilot's failure to maintain pitch control during the emergency landing, which resulted in an aerodynamic stall. 1
The pilot's failure to attain and maintain yaw control during the approach and attempted go around, which resulted in impact with trees and terrain. 1
The inadvertent lodging of the banner-tow cable between the right elevator and horizontal stabilizer after the pilot threw the grapple hook out the window, which resulted in the loss of pitch control and the airplane’s subsequent impact with water. 1
A loss of directional control during a water takeoff for reasons that could not be determined because the airplane was not examined due to the remote accident location. 1
A loss of engine power during a practice power recovery autorotation for reasons that could not be determined based on the available information. 1
The pilot's decision to depart in dark night, visual meteorological conditions over water, which resulted in his subsequent spatial disorientation and loss of airplane control. Contributing to the accident was the pilot's failure to determine the airplane's actual preflight weight and balance and center of gravity (CG), which led to the airplane being loaded and operated outside of the weight and CG limits and to a subsequent aerodynamic stall. 1
The experimental airplane builder's failure to properly secure the stabilator trim tab push-pull tube’s connection, which resulted in the tube’s separation and a subsequent hard landing. Contributing to the accident was the pilot/owner's failure to detect the improperly secured connection during a recent condition inspection. 1
A partial loss of engine power due to the undetected loosening of the four carburetor bolts that connect the throttle body to the bowl assembly. 1
The noncertificated pilot's decision to perform aerobatic maneuvers in his overweight, improperly-loaded airplane in dark night conditions at low altitude, which resulted in a loss of airplane control and collision with terrain. Contributing to the accident was the pilot's established "anti-authority" attitude, as demonstrated by his behavior on the night of the accident and in the years prior. 1
The pilot's failure to maintain adequate distance from a power line during low altitude flight operations, which resulted in an impact with the power line, and subsequent impact with the ground. 1
The pilot's failure to maintain pitch control during the landing roll, which resulted in a porpoise. 1
The total loss of engine power due to the fatigue failure of the No. 1 connecting rod. Contributing to the accident was the manufacturer’s exclusion of the accident engine (by serial number) in a revision of a service bulletin. 1
The pilot's excessive braking during the landing roll, resulting in a nose over. 1
The pilot's excessive application of brake pressure during the landing roll, which resulted in a nose over. Contributing to the accident was the pilot's decision to continue the landing after noting he was high on final approach. 1
A fire in the engine compartment due to the pilot overpriming the hot engine. \r 1
A loss of thermal lift during a motor glider flight, which resulted in an off-airport landing. Contributing to the accident was the pilot’s failure to maintain adequate clearance from power lines during the off-airport landing attempt. \r 1
The pilot's failure to maintain directional control during the landing flare, which resulted in a collision with terrain, and a nose over. 1
The pilot's exceedance of the critical angle of attack in turbulent and downdraft conditions, which resulted in an aerodynamic stall and collision with terrain on final approach. 1
The pilot's failure to maintain sufficient airspeed and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and subsequent spin. Contributing to the accident was the pilot's diverted attention due to the rough running engine, which resulted from a rich fuel/air mixture, and the pilot's decision to conduct the flight in the airplane in which he had little experience flying despite knowing the airplane had preexisting engine problems. 1
The pilot's loss of airplane control for reasons that could not be determined based on the available information. 1
The pilot's mismanagement off the fuel supply to the engine, which resulted in fuel starvation. 1
The pilot's excessive brake application during landing, which resulted in a nose-over. 1
The flight instructor's failure to correct the student pilot's approach path during the final approach, which resulted in a collision with runway threshold lights. Contributing to the accident was the student pilot's failure to attain and maintain the recommended approach path. 1
The airplane’s collision with the ground short of the runway for reasons that could not be determined based on the available evidence.\r 1
The pilot’s improper decision to land the airplane on a short runway with a tailwind and his subsequent delayed decision to abort the landing. \r 1
The pilot's failure to maintain descent rate durring the landing resulting in collision with terrain. 1
The pilot's failure to maintain directional control during the landing roll in crosswind conditions, which resulted in a ground loop, left main landing gear collapse, and the left wing striking the runway. 1
The pilot's loss of helicopter control during an agricultural application pass for reasons that could not be determined due to the extent of damage to the flight control system. 1
The failure of the pilots to maintain control of the airplane while maneuvering, which resulted in an aerodynamic stall from which they did not recover. 1
The pilot's failure to maintain obstacle clearance during the takeoff, which resulted in the helicopter striking power lines. 1
The pilot's impairment due to the ingestion of alcohol, which impaired his decision-making and resulted in his taking off and flying the airplane until the engine lost power due to fuel exhaustion. 1
The pilot's excessive descent rate, which resulted in a hard landing and substantial damage. 1
The pilot’s decision to take off from a confined area and his failure to adequately compensate for wind conditions during the takeoff, which resulted in collision with obstacles. \r\n\r 1
The pilot's continued visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into rising terrain during cruise flight. 1
The pilot's failure to see and avoid runway signage during taxi after landing, resulting in a collision and substantial damage to the left wing of the airplane. 1
The mechanic's inadequate inspection of the brake system during the most recent annual inspection, which resulted in the failure of both left and right main landing gear torque plates and a subsequent loss of braking action. 1
The pilot's failure to maintain directional control during the engine start sequence, which resulted in the helicopter sliding on a steel deck and impacting a crane. Contributing to the accident was the absence of traction material on the helicopter operations portion of the steel deck. 1
The pilot/builder’s failure to ensure that the fuel line was properly secured, which resulted in fuel starvation and the subsequent total loss of engine power. \r\n \r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and ditching the airplane in a lake. 1
The pilot's inadequate preflight weather planning and his improper decision to attempt a visual flight rules flight in night instrument metrological conditions, which resulted in spatial disorientation and subsequent collision with terrain.\r 1
The pilot’s improper recovery from a bounced landing, which resulted in a loss of directional control and subsequent runway excursion.\r\n \r 1
A total loss of engine power during initial climb for reasons that could not be determined because postaccident engine examination did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot's failure to maintain clearance from trees during the approach to land, resulting in a collision with trees. 1
The pilot's selection of an inadequate altitude to cross mountainous terrain and her subsequent failure to maintain terrain clearance. Contributing to the accident was the pilot's inadequate preflight evaluation of the weather conditions and flight plan. 1
The student pilot's failure to accurately determine the airplane's fuel state, subsequent fuel exhaustion, and a total loss of engine power during initial climb. Contributing to the accident was the flight instructor's inadequate oversight of the student pilot's preflight inspection, the flight school's lack of fueling procedures, and the student pilot's exceedance of the airplane's critical angle-of-attack, which resulted in an aerodynamic stall. 1
The pilot's failure to properly secure the cabin door prior to takeoff, resulting in the door opening during takeoff, an aborted takeoff, runway overrun, and collision with terrain. 1
The pilot’s failure to maintain airplane control after takeoff. 1
A hard landing which resulted in a loss directional control and ground loop. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack following a loss of engine power for reasons that could not be determined based on available evidence, which resulted in an aerodynamic stall and left spin.\r\n\r\n \r\n\r 1
The loss of engine power due to water contamination in the fuel system. Contributing to the accident were the pilot’s inadequate preflight inspection of the fuel tanks and the operator’s inadequate inspection of the fuel supply truck that did not detect water contamination. 1
A loss of engine power due to a lean fuel/air mixture as a result of a disconnected fuel primer line. \r\n\r 1
The pilot's failure to compensate for turbulence during the landing flare, which resulted in a hard landing and runway excursion. 1
The pilot exceeded the critical angle of attack during takeoff, which resulted in an aerodynamic stall and a collision with terrain. 1
The pilot's failure to maintain directional control during landing in gusty crosswind conditions, which resulted in a runway excursion and a collision with an airport sign. 1
The pilot's failure to maintain clearance from terrain while hovering, which resulted in the helicopter's skid impacting terrain, subsequent abnormal airframe vibrations, and a hard landing during the subsequent hovering autorotation. 1
The pilot's failure to maintain yaw control as he slowed the helicopter during a landing approach, which resulted in a loss of helicopter control due to a loss of tail rotor effectiveness.\r\n\r 1
Improper engine assembly by unknown maintenance personnel, which resulted in the failure of the No. 6 connecting rod due to oil starvation from the shifting of the crankshaft's No. 4 main bearing. 1
The separation of the attachment hardware connecting the elevator trim tab pushrod to the elevator trim actuator, which resulted in the elevator trim tab jamming in a position outside the limits of normal travel and a subsequent loss of airplane control. 1
The pilot's exceedance of the airplane's critical angle of attack resulting in an aerodynamic stall and collision with terrain. 1
The pilot's decision to takeoff on a partially obstructed runway, which resulted in a collision with trees. 1
The pilot's failure to maintain directional control during the landing roll, resulting in the left main landing gear collapse and substantial damage to the left wing strut attachment points. 1
The separation of the elevator control system linkage at a push/pull tube and cable joint, for an unknown reason, because the bolt and associated hardware securing the joint was not found for examination. 1
The pilot's failure to maintain his descent rate during the landing, which resulted in a hard landing and runway excursion. 1
The pilot's failure to maintain single-engine minimum controllable airspeed following a loss of right engine power during initial climb. Also causal was the loss of right engine power for reasons that could not be determined because examination of the wreckage revealed no significant mechanical deficiencies. Contributing to the outcome was the failure of maintenance personnel to ensure that required airspeed markings and placards were installed in accordance with an airworthiness directive and the airplane flight manual. 1
The total loss of engine power due to contamination in the fuel system. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle
of
attack during a climbing turn, which resulted in an aerodynamic stall/spin at too low of an altitude to recover.\r 1
A loss of engine power during cruise flight due to carburetor icing and the pilot's failure to apply carburetor heat, which resulted in a forced landing on rough/uneven terrain. 1
The pilot’s failure to maintain a proper descent rate on approach, which resulted in a hard landing and the pilot sustaining a serious injury. Contributing to the accident was the pilot’s lack of recent experience flying a standard-shaped balloon.\r 1
The pilot's failure to maintain yaw control during a go-around, which resulted in a right main landing gear collapse and the right wing impacting terrain during a runway excursion. 1
The pilot’s failure to attain the proper touchdown point and to adequately slow the airplane within the available runway, which resulted in a runway overrun.\r 1
The pilot's attempt to recover from an aerobatic maneuver at too low of an altitude to make a safe recovery. 1
The loss of engine power due to the mechanic's inadequate tightening of the crankshaft gear retaining bolts during an engine overhaul, which resulted in fatigue failure of the bolts and the crankshaft gear dowel pin that allowed the crankshaft gear to separate from the crankshaft. 1
The pilot's inadequate airspeed control and the airplane’s exceedance of its critical angle-of-attack during the forced landing, which resulted in an aerodynamic stall. Contributing to the accident was the loss of engine power due to fuel starvation caused by contaminants in the fuel tank. 1
The noncertificated pilot’s failure to maintain control of the unregistered airplane during initial climb and his subsequent exceedance of the airplane’s critical angle-of-attack, which resulted in a stall/spin.\r 1
The fatigue failure of a crankshaft counterweight, which resulted in a total loss of engine power during cruise flight. 1
The pilot's failure during takeoff to attain sufficient airspeed for conditions, and to maintain yaw control and a positive rate of climb, resulting in a loss of directional control, an uncontrolled descent, and collision with trees and terrain. 1
The pilot's loss of directional control during the takeoff, which resulted in a collision with a parked airplane and impact with terrain. 1
The pilot’s decision to take off with the airplane near its maximum gross weight from a runway that did not have sufficient length for the airplane to achieve a normal takeoff and positive climb rate after liftoff. 1
The airplane’s degraded climb performance due to its being over its maximum gross weight and a hole in the engine exhaust. 1
The pilot's improper management of fuel to the left engine during approach for landing, which resulted in a total loss of left engine power due to fuel starvation, and his subsequent failure to maintain control during the final landing approach, which resulted in collision with terrain. 1
The pilot's failure to adequately secure the vent line, which resulted in the premature deflation of the balloon’s envelope and its subsequent contact with power lines. Contributing to the accident were the pilot's choice of an unsuitable landing area, which had power lines opposite the approach end, and his subsequent failure to maintain adequate clearance from the lines during the landing. 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, a forced off-airport landing, and nose over. 1
The pilot's failure to maintain pitch control during the landing, resulting in a hard landing. 1
The pilot's failure to maintain adequate altitude while operating over high mountainous terrain, which resulted in an emergency landing after the airplane's encounter with a downdraft. 1
The partial loss of engine power during cruise flight for reasons that could not be determined because a postaccident airframe and engine examination and engine test run revealed no evidence of mechanical malfunctions or failures. 1
The flight instructor's loss of airplane control while departing in gusting wind conditions that were conducive to low-level wind shear. 1
The pilot's inadvertent failure to engage the seat in the locked position before takeoff, which resulted in the seat sliding back during the takeoff roll and a subsequent loss of directional control. Contributing to the incident was the seat locking mechanism's design of limited feedback, which made it difficult to verify if the seat stops were positively engaged. 1
The pilot's failure to appropriately monitor the helicopter's fuel supply, resulting in fuel exhaustion, loss of engine power, and an autorotation with a hard landing. 1
A total loss of engine power during a practice autorotation for reasons that could not be determined. 1
The flight instructor's decision to turn the helicopter downwind during a hover taxi which resulted in an uncontrolled descent and impact with terrain. 1
The pilot's failure to maintain clearance from a utility pole while maneuvering during an agricultural application flight, which resulted in damage to the right aileron and a subsequent uncontrolled right roll at a low altitude. 1
Total electrical failure due to a failed voltage regulator and the pilot’s failure to maintain a proper airspeed during a precautionary landing, which resulted in a loss of directional control and a runway excursion. 1
The loss of engine power due to the high-cycle fatigue failure of the third-stage turbine wheel. 1
The pilot's loss of directional control, which resulted in a runway excursion, and collision with runway and taxiway lights and terrain. 1
The student pilot's loss of control during a hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor's lack of action to remediate the student pilot's control inputs and recover aircraft control. 1
A motor vehicle's runway incursion causing the premature rotation of the departing airplane, which resulted in a tail strike. 1
The non-instrument-rated pilot's decision to conduct a cross-country flight over a mountain range in dark night conditions with limited night flight experience, which resulted in a collision with mountainous terrain. 1
A loss of power to the No. 2 engine due to the failure of the accessory gearbox drivetrain. Also causal was the pilot’s inability to release the external longline due to the use of a safety wire across the coupling of the quick-disconnect mechanism, which interfered with his efforts to land. Contributing to the accident was the repair facility’s failure to maintain a clean environment, which resulted in the inadvertent introduction of a contaminant during the engine overhaul/repair process. \r\n \r\n \r\n \r\n \r\n \r\n\r 1
The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion and a collision with an object. 1
The pilot's failure to attain the proper touchdown point and exceedance of the target touchdown speed, which resulted in a runway overrun. 1
The non-certificated pilot's failure to maintain clearance from terrain. 1
The partial loss of engine power due to a failed magneto and two cylinders with low compression. Contributing to the accident was the pilot/owner’s decision to operate the airplane with an ongoing engine issue. 1
The fatigue failure of the tail rotor pitch change link spherical bearing housing as a result of corrosion pitting.\r 1
The pilot's failure to attain a proper landing flare following an autorotation for reasons that could not be determined based on available information. 1
The pilot's selection of unsuitable terrain for landing, which resulted in a nose over and impact with terrain. 1
The pilot’s improper decision to turn the helicopter toward a tailwind during an out-of-ground-effect hover, which resulted in a loss of tail rotor effectiveness. Contributing to the accident was the accident and lead pilots’ inadequate preflight risk management.\r\n\r 1
A short circuit of unknown origin, which resulted in electrical arcing in the engine compartment and smoke in the cockpit, which necessitated a precautionary landing to a field. 1
The pilot's failure to apply carburetor heat prior to descending in atmospheric conditions conducive to icing, which resulted in a total loss of power. 1
The pilot's failure to maintain clearance from trees while taxiing into position for takeoff on a narrow private airstrip, resulting in the left wing striking a tree. 1
The loss of engine power for reasons that could not be determined during postaccident examination of the accident site or based on the available information and the pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack after the engine power loss, which led to an aerodynamic stall and loss of control. 1
The loosening of the flyweight due to the installation of an improperly hardened flyweight carrier, which resulted in the overspeed of the propeller and engine and the subsequent in-flight separation of the propeller. 1
The loss of engine power due to carburetor icing and the pilot's failure to recognize conditions favorable for carburetor icing and apply use of carburetor heat. 1
The failure of the left engine high-pressure compressor (HPC) stage 8-10 spool, which caused the main fuel supply line to become detached from the engine main fuel pump and release fuel, resulting in a fire on the left side of the airplane. The HPC stage 8-10 spool failed due to a sustained-peak low-cycle fatigue crack that initiated in the web of the stage 8 disk; the cause of the crack initiation could not be identified by physical inspection and stress and lifing analysis. Contributing to this accident was the lack of inspection procedures for the stage 8 disk web. 1
The pilot's improper decision to delay turning toward a suitable runway once he realized that an engine failure had occurred, which resulted in his having inadequate altitude to glide to a suitable runway, and the New York terminal radar approach control LaGuardia Airport area controller's provision of erroneous emergency divert airport information to the pilot. \r\n\r\nContributing to the accident were (1) the Federal Aviation Administration's lack of a requirement to periodically review and validate radar video maps, (2) the failure of the engine crankshaft due to a bearing shift, and (3) the pilot's impairment due to his abuse of amphetamine and underlying medical condition(s).\r\n\r 1
Impact with terrain during low-level cruise flight for reasons that could not be determined based on the available information. \r 1
The pilot's failure to maintain clearance from the trees during the approach in dark, night conditions, which resulted in controlled flight into trees and terrain. 1
The pilot's failure to maintain a positive climb rate after takeoff due to spatial disorientation while turning after takeoff in dark night conditions in a sparsely populated area, which resulted in the airplane’s descent into water. Contributing to the accident was the pilot's decision to depart on a night flight over water. 1
The pilot's failure to abort the takeoff after determining that the engine was not producing adequate power. Contributing to the accident was the engine's inability to produce adequate power for reasons that could not be determined due to extensive postimpact fire damage. 1
The student pilot's improper decision to conduct a flight in dark, night conditions and his subsequent controlled flight into terrain. 1
The pilot's inadequate preflight planning during which he failed to account for the high-density altitude conditions and high gross weight, which degraded the gyroplane's climb performance and resulted in a hard landing. 1
The pilot's failure to retract the landing gear, which resulted in a gear down water landing and a nose over. 1
The loss of airplane control during a go around, which resulted in impact with the water. Contributing to the accident was the pilot's lack of seaplane rating and inexperience in the accident airplane. 1
The student pilot's abrupt cyclic and collective inputs during the approach to land which resulted in abnormal runway contact and a subsequent tail boom strike by the main rotor blades. 1
The pilot's failure to visually check the quantity of fuel in the fuel tanks in accordance with the Preflight checklist, which resulted in a loss of engine power due to fuel exhaustion and the subsequent forced landing. 1
A partial loss of engine power during takeoff. The reason for the partial loss of power could not be determined due to the extensive fire and impact damage to the engine. 1
The student pilot inadvertently shut off the fuel valve while on the downwind leg, which resulted in a total loss of engine power due to fuel starvation and a forced landing short of the runway. 1
The pilot’s failure to maintain terrain clearance while maneuvering. Contributing to the accident was the pilots’ selection, for undetermined reasons, of a route different than the most commonly used route. \r\n\r 1
The pilot's decision to land the airplane with a tailwind and his subsequent application of excessive braking, which resulted in a nose-over. 1
The helicopter flight instructor's delayed remedial action during an autorotation resulting in a loss of control and impact with terrain. 1
A total loss of engine power due to fuel exhaustion as a result of the pilot’s failure to verify the fuel quantity before the flight.\r 1
A partial loss of engine power due to the No. 1 spark plug being liberated from the cylinder head due to the stripped threads in the cylinder head. Contributing to the accident was the pilot’s decision to attempt to return to the airport while at a low altitude. \r 1
The pilot's incapacitation for reasons that could not be determined because the airplane was not recovered from the ocean. 1
Failure of the No. 6 cylinder connecting rod, due to improper rotation of the propeller during a previous hydraulic lock. \r\n\r 1
The pilot's failure to maintain airspeed and his exceedance of the wing's critical angle of attack, which resulted in an aerodynamic stall and subsequent collision with terrain. 1
The pilot's failure to maintain pitch control during the landing, resulting in a hard landing, nose gear collapse, runway excursion, and collision with terrain. 1
A loss of engine power due to a malfunction of the turbocharging system likely due to contaminated oil. Also causal were the pilot's decision to continue the takeoff although the airplane was not performing normally and his failure to maintain adequate airspeed following the loss of engine power, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. Contributing to the accident was the engine manufacturer's inadequate guidance regarding inspection and maintenance of its turbocharged engines. 1
The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion and collision with a ditch. 1
The pilot's failure to open the fuel shutoff valve during the preflight examination of the airplane which resulted in a total loss of engine power during initial climb after takeoff due to fuel starvation. 1
an encounter with a small microburst on short final at low altitude that resulted in a loss of lift and a tail strike during the go-around. Contributing to the accident was the captain's decision to continue the approach without applying appropriate windshear precautions in accordance with published guidance. 1
The amphibious airplane's impact with a submerged object during a water landing, which resulted in a nose over. 1
The pilot's failure to attain a safe landing approach airspeed with a crosswind. 1
The student pilot’s failure to maintain altitude during approach, which resulted in controlled flight into terrain. Contributing to the accident was the student’s distraction due to other traffic in the airport traffic pattern.\r 1
The local controller's (LC) failure to properly identify the aircraft in the pattern and to ensure control instructions provided to the intended Cessna on downwind were being performed before turning Eagle1 into its path for landing. Contributing to the LC's actions was his incomplete situational awareness when he took over communications from the LC trainee due to the high workload at the time of the accident. Contributing to the accident were the inherent limitations of the see-and-avoid concept, resulting in the inability of the pilots involved to take evasive action in time to avert the collision. 1
inadvertent jet blast, resulting in debris striking ground operations personnel. 1
The pilot’s failure to maintain clearance from power lines during an attempted off-airport landing. 1
The total loss of engine power for reasons that could not be determined based on postaccident examination and testing.\r\n\r 1
The disbondment of a main rotor damper, which resulted in the degradation of its damping action and led to excessive main rotor vibrations and oscillations that caused substantial damage to the helicopter in flight and led to a hard landing.\r\n\r 1
The pilot's loss of directional control during the landing roll which resulted in a runway excursion and impact with terrain. 1
The total loss of engine power due to fuel starvation, which resulted from the pilot’s inadequate fuel management and the flight instructor’s failure to verify the fuel level and fuel selector position in flight. 1
The pilot’s improper landing flare, which resulted in a hard landing and separation of the left main landing gear wheel from its strut.\r 1
The pilot's loss of directional control during the takeoff roll, which resulted in a runway excursion, ground loop, and impact with terrain. Contributing to the accident was the pilot's lack of experience from the back seat. 1
The pilots' failure to maintain airplane control during a low-altitude maneuver. 1
The pilot's failure to maintain clearance from terrain while conducting a low-altitude aerobatic maneuver. 1
The pilot's incapacitation from complications of a recent heart attack, which resulted in a loss of control during cruise flight. 1
The student pilot’s loss of directional control during landing with a tailwind, which resulted in a runway excursion and collision with trees. \r 1
The pilot’s inadequate visual lookout and failure to maintain clearance from trees while maneuvering at low altitude.\r 1
The pilots' failure to maintain airplane control following a partial loss of engine power after takeoff, which resulted in an aerodynamic stall. Contributing to the accident was the partial loss of engine power due to a failure of the right magneto. 1
Maintenance personnel’s failure to apply proper torque to the cylinder flange nuts and through bolts during installation of the engine cylinders, which resulted in the loosening of the components, loss of lubrication, failure of the crankshaft, and the subsequent total loss of engine power. 1
The pilot's selection of an unsuitable, off-airport site, which resulted in a nose over. 1
The pilot's improper pitch control during the landing flare, which resulted in a porpoise and subsequent hard landing. 1
Maintenance personnel’s inadequate fuel injection servo maintenance due to an out-of-date AD list, which resulted in the fuel injection servo plug backing out of the threaded plug hole on the regulator cover of the fuel injection servo and subsequent total loss of engine power.\r 1
The pilot's failure to maintain obstacle clearance, which resulted in the airplane striking guy-wires during aerial application operations. 1
The pilot's improper loading of the airplane, which resulted in a sudden pitch up during the attempted takeoff, the pilot’s subsequent loss of directional control, and an aerodynamic stall. 1
The sport pilot’s improper decision to operate the weight-shift-control aircraft at low altitude and his subsequent failure to maintain control of the aircraft, which resulted in a subsequent collision with terrain. 1
The pilot's improper preflight fuel planning and in-flight fuel management, which resulted in a total loss of engine power due to fuel exhaustion. 1
The noninstrument-rated pilot's improper judgment and his failure to maintain situational awareness, which resulted in the flight's encounter with instrument meteorological conditions and controlled flight into terrain during cruise flight. 1
The partial loss of engine power for reasons that could not be determined based on the available evidence.\r\n\r\n
\r 1
The pilot’s undershooting the landing area and the subsequent impact with a hay bale. Also causal to the accident was the operation of the airplane in conditions conducive to carburetor icing, which reduced the engine power during the landing. 1
The pilot's loss of directional control during the landing roll due to contact with a corn crop that extended into the runway area. Contributing to the accident were the lack of accurate available information to the pilot regarding the runway condition, the pilot's failure to observe the intervening corn crop during the prelanding aerial fly-over, and his decision to land on a runway with a limited safety margin. 1
The propeller’s movement to the beta position during landing for reasons that could not be determined during postaccident examination and testing, which resulted in an attempted go-around and subsequent loss of airplane control. 1
The pilot's inadequate preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's decision to return to the runway shortly after takeoff, and his failure to maintain adequate airspeed during the turn, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall and spin. 1
The pilot's loss of airplane control due to spatial disorientation, which resulted in an aerodynamic stall/spin. Contributing to the accident was deficient Federal Aviation Administration air traffic control training on recognition and handling of emergencies, which led to incorrect controller actions that likely aggravated the pilot's spatial disorientation. 1
A total loss of engine power due to oil starvation caused by insufficiently torqued cylinder through bolt nuts, which caused bearings to shift and led to the subsequent failure of the No. 3 connecting rod.\r 1
The pilot's failure to land with sufficient runway remaining to safely stop the airplane. Contributing to the accident was the pilot's fatigue during the flight. 1
The pilots decision to land on an unfamiliar, unimproved airstrip which resulted in a loss of control and runway excursion. 1
The pilot's exceedance of the critical angle of attack during takeoff, which resulted in an aerodynamic stall and impact with terrain. 1
The mechanic's improper installation of the turbocharger assembly, which resulted in oil starvation and a subsequent total loss of the engine power. 1
The pilot's loss of control due to spatial disorientation shortly after takeoff into low instrument meteorological conditions. 1
The pilot's loss of airplane control during the landing approach due to an incapacitating medical event. 1
The pilot's failure to maintain airplane control while landing with a left quartering tailwind. Contributing to the accident was the pilot's inability to conduct a go-around because of a loss of engine power due to carburetor icing. 1
The pilot's improper pitch control during landing, which resulted in a hard landing. 1
The pilot's failure to land with sufficient runway remaining to safely stop the airplane, resulting in a runway over-run and collision with terrain. 1
The separation of the tail rotor gearbox from the tailboom aft bulkhead due to overstress loads imposed by a blade imbalance from an in-flight impact with an undetermined object.\r\n\r 1
The student pilot's failure to adequately ensure the carburetor was clear of ice before takeoff, which resulted in a partial loss of engine power during takeoff due to carburetor icing. 1
The pilot's loss of airplane control, which resulted in a hard landing. 1
The pilot's continued flight into known convective weather conditions, which resulted in the airplane's encounter with thunderstorms and the pilot's subsequent loss of airplane control during a missed approach. Contributing to the accident was the failure of the approach controllers and the tower controllers to provide timely and accurate weather information to the pilot. 1
The pilot's failure to maintain airspeed control during the landing in gusty wind conditions, resulting in an abnormal runway contact, and collision with terrain. 1
The pilot’s failure to maintain clearance from terrain during an aerial application flight. \r 1
The pilot's excessive application of brake pressure, which resulted in the airplane nosing over. 1
The pilot's failure to maintain directional control during the landing roll in crosswind conditions, which resulted in a runway excursion, and collision with a ditch. 1
The in-flight failure of the left wing lower forward attach point under normal loading conditions due to corrosion and fatigue cracking in the center section hinge brackets. Contributing to the accident was the operator's inadequate maintenance and overweight operation of the airplane, and the manufacturer's inadequate guidance to detect and prevent corrosion and fatigue cracking. 1
The pilot's descent below the published minimum descent altitude in night instrument meteorological conditions without visual contact with the runway environment, which resulted in a collision with trees and terrain short of the runway. Contributing to the accident were the pilot's acute fatigue and his decision to attempt an instrument approach procedure that was not authorized at night. 1
A bird strike. 1
The student pilot's improper directional control inputs during the takeoff roll, resulting in a roll over and collision with terrain. 1
The failure of the nose landing gear due to unanticipated fatigue loads. 1
Loss of propeller thrust for reasons that could not be determined, since examination of the airplane's engine, propeller, and associated accessories revealed no anomalies. 1
The pilot's failure to maintain obstacle clearance during low level flight, which resulted in the airplane striking a wire, impacting water, and nosing over. 1
A partial loss of engine power due to fuel vapor lock. Contributing to the accident was the absence of a fuel return line. 1
An in-flight loss of airplane control for reasons that could not be determined because postaccident examination of the airframe and engine revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot’s loss of airplane control due to his diverted attention to the canopy opening in flight. \r 1
Separation of the vertical and horizontal stabilizers from the fuselage due to a fracture that initiated at the bond between the left horizontal stabilizer and the flange that attached the horizontal stabilizer to the fuselage skin. The failure was likely caused by construction techniques that produced poor bond strength in a critical area and the high loads on the horizontal stabilizer from a single or multiple aerobatic maneuver(s). 1
The pilot's improper preflight performance planning, which resulted in a hard landing due to low rotor rpm while operating near maximum gross weight in high density altitude conditions. 1
The jet flight crew's use of an inappropriate checklist to resolve a parking brake hydraulic system pressure anomaly, which resulted in the airplane rolling down a slight incline and colliding with the parked twin-engine turboprop airplane. Contributing to the accident was the defective parking brake check valve.\r\n\r 1
A total loss of electrical power for reasons that could not be determined and the pilot's subsequent failure to properly follow the manual landing gear extension procedures, which resulted in the landing gear not extending.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and a ground loop. 1
The failure of the brake line tubing for the right main landing gear brake, due to a non-standard method used to secure the brake line, which resulted in a loss of control during landing, and a ground loop. 1
The flight instructor’s inadequate preflight planning, which resulted in collision with trees and terrain during takeoff. 1
The total loss of engine power during the initial climb for reasons that could not be determined because postaccident examination of the engine revealed no anomalies that would have precluded normal operation. 1
The inadequate inspection of the airplane's landing gear, which resulted in a collapse of the right main landing gear due to cracking and corrosion.\r 1
The pilot did not maintain directional control of the airplane during the landing flare when a sudden wind shift occurred. 1
The pilot’s failure to maintain terrain clearance from terrain after initiating an aerobatic maneuver at a low altitude. \r 1
The pilot’s failure to maintain clearance from a power line while maneuvering at low altitude.\r 1
The failure of the engine due to a lack of oil lubrication for reasons that could not be determined during postaccident examinations.\r\n\r 1
The total loss of engine power due to carburetor ice. \r\n\r\n \r\n\r 1
The pilot failed to maintain control of the airplane while maneuvering to land resulting in contact with a power line and the ground. Contributing to the accident was the pilot's lack of familiarity with the airplane. 1
The pilot was unable to maintain directional control during the landing due to the foreign object that lodged behind the rudder. 1
The failure of a spring inside the No. 2 brake’s upper brake control valve and the fracture of the coupling subassembly of the No. 1 wheel speed sensor during landing, which resulted in the loss of braking action, and the pilot-in-command’s (PIC) deactivation of the antiskid system even though there were no antiskid failure annunciations, which resulted in the rupture of the Nos. 1, 3, and 4 tires, further loss of braking action, and subsequent landing overrun. Contributing to accident were the PIC’s improper landing flare, which resulted in landing several hundred feet beyond the aiming point marking, and his unsuccessful attempts to deploy the thrust reversers for reasons that could not be determined because postaccident operational testing did not reveal any anomalies that would have precluded normal operation.
Contributing to the passenger’s injury was his leaving his seat intentionally while the airplane was in motion.\r 1
The pilot's failure to land the airplane within the desired touchdown zone, resulting in a long landing and collision with a fence. 1
The pilot-receiving-instruction's excessive pitch control during takeoff, which resulted in an aerodynamic stall shortly after liftoff and the subsequent loss of control. Contributing to the accident was the flight crew's decision to have the flight instructor separately control the throttle while the pilot-receiving-instruction manipulated the flight controls, which resulted in inadequate coordination between the flight crew during the attempted stall recovery. 1
A loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. 1
A partial loss of engine power for reasons that could not be determined based on the available evidence. \r 1
The student pilot's failure to maintain directional control while landing and the flight instructor's delayed remedial action, which resulted in a ground-loop and the left wing dragging the runway. 1
The pilot's failure to maintain adequate clearance from the ground, which resulted in a loss of control and subsequent dynamic rollover. 1
The pilot's failure to maintain airplane control when he exceeded the airplane's critical angle of attack during climb out which resulted in a loss of airspeed and subsequent aerodynamic stall. 1
A total loss of engine power for reasons that could not be determined because postaccident testing of the engine revealed no anomalies. 1
A loss of engine power due to fuel starvation. Contributing to the accident was the pilot's inadequate planning for the test flight, which resulted in insufficient altitude and no suitable place to land in the event of an emergency. 1
The pilot's failure to properly execute the instrument approach procedure. Contributing to the accident were the pilot's improper preflight planning and his decision to conduct the flight in instrument meteorological conditions at night into forecast moderate turbulence and with inadequate avionics equipment for the planned flight. 1
The pilot's failure to maintain a proper glidepath and failure to perform a go-around once a safe landing could not accomplished, which resulted in a landing area overshoot and runway excursion. 1
the captain's inability to maintain directional control of the airplane due to his application of excessive reverse thrust, which degraded the effectiveness of the rudder in controlling the airplane's heading. Contributing to the accident were the captain's (1) situational stress resulting from his concerns about stopping performance and (2) attentional limitations due to the high workload during the landing, which prevented him from immediately recognizing the use of excessive reverse thrust. 1
A total loss of engine power during initial climb when the carburetor main metering jet became unseated, which led to an extremely rich fuel-to-air ratio. Contributing to the accident was the lack of adequate carburetor maintenance instructions. Contributing to the severity of the pilot's injuries was the improperly installed shoulder harness. 1
Abnormal ground contact during an autorotation demonstration, resulting in a severed tailrotor driveshaft. 1
The improper installation of the UP elevator cable turnbuckle which became disconnected during the flight. 1
A hard landing, which resulted in the pilot’s loss of directional control and the airplane’s subsequent nose-over. \r 1
The pilot's decision to land during unfavorable wind conditions, which resulted in a loss of control due to settling with power. Contributing to the accident were the lack of an adequate approach path due to numerous obstructions and the lack of available guidance regarding the helicopter's performance capabilities in the right quartering tailwind condition. \r\n\r 1
The separation of the flight control stick from the stub due to its improper installation. 1
The student pilot's inadequate landing flare which resulted in a hard landing and substantial damage to the airplane. 1
A partial loss of engine power for reasons that could not be determined based on the available information. Contributing to the accident was the pilot's failure to maintain control while maneuvering for a forced landing, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall.\r\n\r 1
The loss of engine power during the go-around due to fuel contamination. 1
The pilot's decision to make a low pass over a lake near trees and his subsequent failure to maintain airplane control while maneuvering at a low altitude to avoid trees, which resulted in an inadvertent cross-control aerodynamic stall from which he was unable to recover. 1
The pilot did not maintain control of the airplane during the landing roll at night on an unlit grass strip. 1
The failure of the helicopter's main drive belt resulting in the pilot performing a forced landing, during which the helicopter's fuselage was substantially damage. 1
The ground service vehicle operator's failure to yield right of way to the airplane due to distraction, which necessitated the pilot's use of reverse thrust and braking to avoid a collision and resulted in the airplane's empennage striking the ground. 1
The student pilot's failure to maintain aircraft control during landing, and his subsequent failure to recover from a bounced landing, which resulted in a hard landing. 1
The pilot under instruction's inadvertent retraction of the landing gear during the landing rollout. 1
The pilot's failure to maintain directional control during landing with a crosswind which resulted in a ground loop. 1
A total loss of engine power after takeoff due to fuel starvation as a result of excessive wear of the fuel selector valve. Also causal was the owner/operator and maintenance personnel's inadequate maintenance, and inadequate postmaintenance inspection. 1
The left engine propeller's uncommanded travel to the feathered position during takeoff for reasons that could not be determined due to impact damage. Contributing to the accident was the flight crew's failure to establish a coordinated climb once the left engine was shut down and the left propeller was in the feathered position. \r\n\r 1
The pilot's failure to maintain airplane control during an off-airport forced landing following a total loss of engine power for reasons that could not be determined during postaccident examination of the engine. Contributing to the accident was the pilots' decision to conduct the flight with known mechanical deficiencies. 1
The pilot's failure to maintain directional control during a crosswind landing in gusting crosswind conditions. 1
The pilot’s loss of airplane control after takeoff, which resulted in collision with terrain. Contributing to the accident was the pilot’s failure to properly secure the cabin door and trim the airplane for takeoff, which resulted in the cabin door opening and the nose pitching up suddenly at liftoff.\r 1
The total loss of engine power due to fuel exhaustion, which resulted from the pilot's inadequate preflight and in-flight fuel planning, which did not account for the increased headwind.\r\n\r 1
The loss of torque on the No. 4 cylinder through bolts, which led to the subsequent failure of the piston, the liberation of the connecting rod, the separation of the No. 4 cylinder from the crankcase in cruise flight, and the airplane’s subsequent impact with a pole during a night forced landing.\r\n\r 1
The collapse of all three landing gear during the takeoff roll for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.\r\n\r 1
A total loss of engine power during the initial climb due to fuel contamination. Contributing to the accident was the pilot’s inadequate preflight inspection of the fuel system. \r 1
The collapse of the nose landing gear (NLG) due to the separation of the right trunnion pin from the NLG strut as a result of reverse-bending fatigue.\r\n\r 1
The pilot did not maintain clearance from a power line while maneuvering at a low altitude. 1
an encounter with convective turbulence associated with a forecasted area of thunderstorms. 1
The pilot did not maintain adequate clearance from the trees. 1
An uncontained engine failure, which resulted from insufficient lubrication of the No. 4 bearing due to carbon buildup on the filter screen of the bearing's oil supply nozzle. 1
The pilot's failure to maintain the descent rate, resulting in abnormal runway/ground contact. 1
The pilot’s failure to maintain airplane control during a rejected takeoff from a slush-covered runway at night. \r\n\r 1
The collapse of the nose and right main landing gears during landing for reasons that could not be determined because examination of the landing gear system revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.\r\n\r 1
The pilot's failure to extend the landing gear prior to touch down. Contributing to the accident was the pilot's failure to utilize the pre-landing checklist. 1
A total loss of engine power after takeoff for reasons that could not be determined, because examination of the engine did not reveal any mechanical anomalies that would have precluded normal operation.\r\n\r 1
The flight crew's failure to manage cockpit tasks during taxi resulting in a loss of situation awareness and subsequently taxiing past a required turn point and onto an active runway without clearance. Contributing to the runway incursion was the ground controllers ineffective monitoring to ensure issued taxi instructions were followed. 1
The inadequate maintenance and inspection of the fuel system, which resulted in partial blockage of a fuel filter, a partial loss of engine power, and subsequent ditching.
\r 1
Maintenance personnel's failure to properly inspect and clean the engine ignition harness spark plug terminals, which resulted in a partial loss of engine power during an attempted takeoff. 1
The fatigue failure of the engine-to-transmission driveshaft adapter attachment bolt due to the application of inadequate torque on the bolt during assembly.\r\n\r 1
The pilot's delayed decision to abort the takeoff after the airplane did not lift off as expected due to an inaccurate airspeed indication and tailwind condition, which resulted in a subsequent runway overrun. 1
The fracture of the tail rotor pitch change link due to excessive bearing rotational friction, which resulted from the bearings being installed in exceedance of the maximum allowable torque during the last overhaul of the pitch change link. 1
The student pilot's improper flight control inputs resulting in the loss of control during the landing flare. 1
A total loss of engine power due to the refueler’s incorrect refueling of the airplane. Contributing to the accident was the fixed-base operator’s improper fueling nozzle, which facilitated the use of an incorrect fuel, and the pilot’s inadequate preflight inspection.
\r 1
a partial inflation of the 1L escape slide/raft due to undetermined reasons resulting in insufficient capability to support the weight of the crewmember. 1
A loss of engine power during descent for reasons that could not be determined because postaccident examination of the engine revealed no anomalies that would have precluded normal operation. 1
The pilot's failure to maintain control of the airplane during takeoff from an icy surface in gusty wind conditions. 1
The pilot's failure to maintain a positive rate of climb after taking off from the service truck, which resulted in the helicopter impacting terrain. 1
The total loss of engine power during initial climb due to the disconnection of both fuel pump power wires. 1
The pilot's overcorrection to the landing pad shifting, which resulted in the helicopter impacting trees. A factor contributing to the accident was the collapse of the landing pad. 1
The pilot's failure to attain the proper touchdown point on the short, wet, turf runway. Contributing to the accident was the pilot’s use of a high approach speed. 1
An inflight loss of control due to the likely detachment of the forward left servo control tube upper rod end attachment bolt. 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the airplane revealed no evidence of any mechanical anomalies that would have precluded normal operation. 1
The pilot's inadequate fuel planning, which resulted in fuel exhaustion and a total loss of engine power.\r 1
The pilot involved and the phase of flight when the damage occurred were not determined. 1
The fuel pump gear manufacturer’s allowance of set-up gears made from a nonconforming material to be put in the production inventory system, the installation of a nonconforming gear in the accident airplane’s production fuel pump, and the gear’s failure, which resulted in a loss of fuel flow to the engine and the subsequent loss of engine power.\r\n\r 1
Loss of engine power due to fuel contamination. A factor contributing to the accident was the pilot's inadequate preflight. 1
The student pilot applicant’s failure to clear the engine during a prolonged descent of a simulated engine failure and his subsequent rapid throttle input at the completion of the maneuver, which resulted in the engine’s failure to respond. Contributing to the accident was the sport pilot applicant's decision to turn the aircraft away from a suitable landing area before adding power. 1
The pilot's failure to ensure that the airplane's landing gear was down and locked prior to touchdown. 1
A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r\n\r 1
The failure of the engine to regain normal power after a simulated engine failure due to carburetor icing, which resulted in a forced landing on muddy terrain and a subsequent nose-over. 1
The pilot's decision to depart on and to continue a visual flight rules flight over mountainous terrain into instrument meteorological conditions, which resulted in controlled flight into terrain. Contributing to the accident was the pilot's lack of recent instrument flight experience, which exacerbated his difficulty in maintaining control of the airplane while encountering downdrafts and mountain obscuration conditions. 1
The in-flight separation of the left aileron's attachment hardware at the connection between the long aileron pushrod and the left aileron bellcrank. Contributing to the accident was maintenance personnel’s improper installation of, or failure to install, the left aileron attachment hardware. 1
The flight instructor's decision to land the airplane without sufficient runway to stop, resulting in a runway excursion and substantial damage to the right wing of the airplane. 1
The pilot's failure to maintain directional control during a precautionary off airport landing. 1
The pilot’s decision to take off in a crosswind that exceeded the airplane’s maximum demonstrated crosswind capability and his subsequent inability to maintain directional control. \r 1
The partial loss of engine power after takeoff for undetermined reasons, which necessitated a forced landing, during which the airplane impacted trees and a power line. 1
The pilot' failure to maintain adequate airspeed after takeoff, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. Contributing to the accident was the pilot's decision to conduct the flight without obtaining a flight review or refresher training. \r\n\r\n\r\n\r 1
The pilot did not maintain directional control of the airplane in gusting wind conditions. 1
The student pilot's failure to maintain attitude control during landing flare. 1
The loss of helicopter control for reasons that could not be determined based on the available evidence. 1
The pilot’s failure to maintain clearance from trees during a base-to-final turn while landing toward the sun.\r 1
The pilot's inadequate preflight inspection/planning, which resulted in fuel exhaustion, and a loss of engine power en route. 1
The student pilot's failure to maintain adequate airspeed after takeoff, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. 1
The pilot's decision to depart from an upsloping, soft grass runway at or near the airplane's maximum gross weight and with a high density altitude, which increased the airplane's ground roll and placed the airplane in close proximity to trees during the initial climb, and the pilot's subsequent inability to adequately compensate for gusting wind conditions, which resulted in a stall/mush and impact with trees and terrain during takeoff. 1
The failure of the flight instructor and the pilot to abort the takeoff after the airplane experienced a partial loss of engine power with adequate runway remaining, and their subsequent failure to maintain adequate airspeed, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. Contributing to the accident was an intermittent loss of engine power for reasons that could not be determined during postaccident examination of the wreckage due to extensive postcrash fire damage. 1
The RV-8 pilot's failure to maintain adequate clearance from the RV-6 while maneuvering during an air show, which resulted in a midair collision.\r 1
The inadvertent deployment of the air brakes during initial climb, resulting in a loss of lift. Contributing to the accident was the pilot's failure to identify and remediate the cause. 1
The partial loss of engine power during final approach for reasons that could not be determined during postaccident examination of the engine. 1
Failure of the left main landing gear lower adjusting bolt due to overstress, which resulted in the left main landing gear collapse during landing.\r 1
The total loss of right engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot's failure to maintain control of the airplane during the landing roll, which resulted in a runway overrun. 1
The pilot's inadvertent placement of both fuel selectors to the "off" position, which resulted in fuel starvation and a total loss of engine power. 1
The malfunction of the right brake for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation.\r 1
The pilot’s failure to maintain lateral or bank control during takeoff, which resulted in collision with, and subsequent suspension from, a tree. Contributing to the pilot’s fatal injuries was his attempt to jump out of the trike to a nearby tree limb. 1
The pilot's failure to maintain control while hovering at a low altitude, which resulted in an impact with frozen lake ice. Contributing to the accident was the pilot's decision to operate the helicopter from the left seat contrary to the rotorcraft flight manual, and the decision to continue the flight after the initial impact. 1
The pilot's failure to use any airport guidance while taxiing, which resulted in geographic disorientation and a takeoff attempt from an inadequate length and unsuitable surface. 1
The pilot's improper decision to continue the landing when the airplane was not in a safe position to land, resulting in the collision with ground-based approach lighting. 1
Engine vibration for reasons that could not be determined based on the available evidence. 1
The pilot’s initiation of an early rotation during takeoff, which led to an aerodynamic stall and loss of airplane control. Contributing to the accident were the pilot's use of nose
up pitch trim and the operator's policy to use nose-up pitch trim during takeoff and the lack of oversight of the operator by the US Air Force. Contributing to the severity of the accident were US Marine Corps airport policies that allowed construction activities immediately adjacent to an active runway, which resulted in the airplane's collision with a truck. 1
The failure of the No. 4 piston wrist pin plug and the subsequent entry of its metal shavings into the oil system, which clogged the oil passages and caused the engine to seize. Contributing to the accident was the installation of engine parts that were not approved by the engine manufacturer. 1
The pilot's failure to use the proper hand propping procedures, resulting in a runaway airplane. 1
The pilot's failure to maintain directional control while landing in a gusty crosswind, which resulted in a runway excursion and a nose over. 1
The student pilot's failure to maintain directional control during landing roll, which resulted in a loss of control. Contributing to this accident was the flight instructor's delayed remedial action. 1
The flight's inadvertent encounter with night instrument meteorological conditions, which resulted in the pilot turning the helicopter and subsequently descending into trees and terrain due to spatial disorientation. 1
The failure of the ball bearing within the pitch change spider assembly due to its operation with no grease within the bearing, which resulted in the subsequent fracture of the spider assembly and a loss of tail rotor control authority. Also causal to the accident were the overhaul facility’s failure to follow the helicopter manufacturer’s spider assembly overhaul procedures, which resulted in the assembly leaving the facility with no grease in the bearing, and the mechanic’s failure to complete all of the tasks on the 600-flight-hour/24-month inspection checklist, which led to the lack of grease in the bearing going undetected. 1
A loss of helicopter control following an uncommanded increased left cyclic pressure during landing for reasons that could not be determined because postaccident examination of the helicopter revealed no evidence of any mechanical malfunctions or anomalies. 1
The nose landing gear’s failure to fully extend due to missing and damaged fastening hardware on the drive arm assembly.\r\n\r 1
The pilot's failure to maintain main rotor RPM during a low altitude operation, which resulted in a loss of aircraft control and collision with terrain. 1
The pilot's selection of unsuitable terrain for landing after noting a higher-than-anticipated wind speed and the balloon's high descent rate, which resulted in a hard landing. 1
The student pilot’s failure to maintain adequate airspeed while maneuvering, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. Contributing to the accident was the student pilot's decision to operate the airplane at a low altitude that did not allow for stall recovery. \r 1
The separation of the nosewheel upon landing due to a missing bolt that attached the upper torque assembly to the nosewheel steering arm assembly. When and how the bolt separated could not be determined. 1
The pilot's improper decision to attempt a nighttime landing at an unsuitable airport, which resulted in a collision with the precision approach path indicator. 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, and a loss of engine power enroute. 1
The pilot's loss of directional control during a bounced landing, which resulted in a runway excursion. 1
The pilot's decision to continue a visual flight rules flight into known instrument flight rules conditions, which resulted in controlled flight into terrain. 1
The loss of engine power due to three stuck exhaust valves.\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, and a loss of engine power en-route. 1
The pilot's failure to maintain directional/pitch control during final approach, resulting in a collision with terrain. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and collision with terrain. 1
The pilot's failure to use carburetor heat during the flight while operating in conditions conducive to carburetor icing, which resulted in a total loss of engine power due to carburetor icing. Contributing to the accident was the pilot's decision to take off in low visibility conditions, which precluded him from being able to locate a suitable emergency landing area. 1
The airplane encountered extreme turbulence during descent. 1
An undetermined malfunction of the nosewheel steering control module, which resulted in the nose landing gear being jammed in the gear bay. Contributing to the accident was the improper rigging of the nosewheel steering feedback sensors during installation.\r 1
The pilot's failure to maintain directional control during the landing roll with a strong crosswind, which resulted in a runway excursion. 1
The pilot's improper landing flare, which resulted in a hard landing and collapse of the left main landing gear. 1
The pilot's loss of control following a loss of left engine power for reasons that could not be determined because an examination of the airframe and engine did not reveal any preimpact abnormalities. \r\n\r 1
The helicopter's contact with the landing pad during a rejected landing. 1
The loss of power to the right engine for reasons that could not be determined during postaccident examination and teardown and the pilot’s failure to properly configure the airplane for single-engine flight.\r 1
The pilot's failure to maintain adequate airspeed to compensate for icing on the airplane's wings and control surfaces during a circling approach, which resulted in an aerodynamic stall and impact with terrain. 1
The inadequate modification of the airplane’s canopy latching mechanism, which resulted in the inadvertent opening of the canopy while on final approach to land and a subsequent loss of pitch control.\r\n\r 1
The noninstrument-rated pilot’s continued flight into night instrument meteorological conditions, which resulted in his failure to maintain clearance from terrain. \r 1
The failure of the fanshaft due to fatigue.\r 1
A total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination and testing did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot’s continued visual flight into instrument meteorological conditions which resulted in an inflight collision with terrain. Contributing to the accident was the pilot’s inadequate preflight planning, during which he failed to identify forecasted deteriorating weather conditions along the route of flight.
\r 1
The pilot's failure to compensate for crosswind conditions during takeoff, which resulted in the loss of directional control and collision with terrain. 1
The pilot's inadequate visual lookout while taxiing, which resulted in the airplane striking a pole. 1
The pilot's failure to properly set the left engine fuel selector before takeoff and to recognize the incorrect setting during the flight, which resulted in fuel starvation and a loss of engine power on both engines. 1
The pilot's failure to maintain control of the helicopter while landing which resulted in a tailrotor ground strike and collision with terrain. 1
The pilot's failure to maintain adequate spacing from the preceding aircraft during a formation landing, resulting in an inadvertent "prop wash" encounter, loss of control, and impact with terrain. 1
The accidental application of the brakes by the passenger during landing roll which resulted in the airplane nosing over. 1
A total loss of engine power for reasons that could not be determined during postaccident examinations and testing.\r 1
The pilot's improper approach to landing and his failure to perform a go-around, which resulted in a runway overshoot, and collision with a fence. 1
The pilot’s loss of airplane control while troubleshooting an engine issue in instrument meteorological conditions, which resulted in impact with trees and terrain.\r 1
The pilot did not maintain directional control during takeoff on the snow and ice covered runway in gusting crosswind conditions. 1
The improper installation of the lower rear crankshaft counterweight snap rings by unknown maintenance personnel, which resulted in the separation of the counterweight and a subsequent total loss of engine power during initial climb.\r 1
The pilot’s overrotation of the airplane when lifting the tail during the takeoff roll, which allowed the propeller to come in contact with the runway and resulted in a reduction in engine power and the pilot’s subsequent loss of directional control. 1
The engine’s failure to regain full power after a simulated engine failure for reasons that could not be determined during postaccident examinations and testing.\r\n \r 1
The pilot's failure to maintain clearance with terrain that was along the planned route of flight. 1
The pilot's failure to properly set the throttle prior to engine start, which resulted in a loss of control and collision with parked airplanes. 1
The loss of hydraulic fluid and subsequent pressure due to cracks in the right main landing gear (MLG) actuator, which resulted in the collapse of the MLG during landing.\r 1
The pilot's improper decision to take off despite low fuel alerts, which resulted in a total loss of engine power due to fuel exhaustion, his subsequent failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack, which led to an aerodynamic stall and loss of control at too low of an altitude to recover. Contributing to the accident was the pilot's distraction due to his sending e-mails and being rushed during taxi and takeoff, which resulted in reduced vigilance about the airplane's fuel status. 1
The non-instrument rated pilot’s decision to depart into low visibility conditions, which resulted in spatial disorientation and a loss of control. Contributing to the accident was the pilot’s impaired performance due to his use of the sedating antihistamine, diphenhydramine.\r 1
The flight instructor’s loss of directional control during an attempted go-around with a crosswind. Contributing to the accident was the loss of engine power for reasons that could not be determined during examination of the engine.\r 1
The student pilot’s failure to maintain rotor rpm while maneuvering in the airport traffic pattern, which resulted in the helicopter’s uncontrolled descent to the water. Contributing to the accident was the student’s distraction with other aircraft operating in the traffic pattern. \r 1
A main rotor stall due to low rotor rpm, which resulted in an uncontrolled descent into terrain. Contributing to the accident was the flight instructor’s delayed remedial action. \r 1
The pilot’s failure to see and avoid the other airplane, which resulted in a midair collision while both airplanes were on final approach to land. \r 1
A total loss of engine power during cruise flight due to the fatigue failure of the engine crankshaft. Contributing to the accident was the unapproved repair and improper inspection of the engine crankshaft.\r 1
The pilot's inadequate control of the airplane during the landing roll, which resulted in a runway excursion. 1
the pilot's conduct of an approach in structural icing conditions without turning on the airplane's wing and horizontal stabilizer deice system, leading to ice accumulation on those surfaces, and without using the appropriate landing performance speeds for the weather conditions and airplane weight, as indicated in the airplane's standard operating procedures, which together resulted in an aerodynamic stall at an altitude at which a recovery was not possible. 1
The loss of engine power during cruise flight for reasons that could not be determined based on the available information. 1
The pilot's decision to maneuver the airplane at low altitude resulting in the airplane impacting power lines. 1
The pilot's inadequate approach and excessive airspeed, which resulted in a long landing, the subsequent runway overrun, and impact with terrain. Contributing to the accident was the pilot's delay in aborting the landing. 1
The improper installation of a doubler patch, which prevented the right flap from actuating and moving properly and led to the subsequent interference with the aileron.\r 1
A loss of engine power while maneuvering at low altitude for reasons that could not be determined during postaccident examination.\r 1
an inadvertent encounter with convective turbulence during descent. 1
The pilot's failure to maintain situational awareness during a turn which resulted in a loss of airplane control. 1
The pilot’s decision to descend below the recommended altitude during approach for landing in night visual meteorological conditions, and his failure to see and avoid a lighted tower, which resulted in collision with the tower and a subsequent total loss of engine power.\r 1
The mechanic’s improper installation of the elevator trim actuator, which resulted in reversed elevator trim control, and his subsequent failure to detect the misrigging of the elevator cables during the postmaintenance inspection.\r 1
A short in the trim system’s wires and connector, which resulted in the elevator trim being in a full nose-down position.\r 1
The pilot's decision to fly the airplane with known engine deficiencies and his subsequent exceedance of the airplane's critical angle of attack following a loss of engine power, which resulted in an aerodynamic stall and loss of control after takeoff. 1
The failure of the uncertified engine's front connecting rod needle bearing, which resulted in damage to the front piston and a subsequent loss of engine power. Contributing to the accident was the pilot’s decision to operate the airplane with the uncertified engine over a town that had no suitable area to land. 1
an inadvertent encounter with birds during approach to land that resulted in substantial damage. 1
The pilot’s failure to maintain airspeed while maneuvering at a low altitude, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. 1
\r\nThe nose landing gear collapse as a result of the fracture of the engine mount at the nose gear actuator attachment point in an area that a service bulletin (SB) recommended for inspection. Contributing to the accident was maintenance personnel’s inadequate compliance with the SB.\r 1
The pilot’s failure to maintain clearance from terrain while performing an intentional, abrupt low-level maneuver. \r 1
The pilot's failure to prevent the helicopter from settling with power while maneuvering at a low altitude, which resulted in a loss of control and subsequent hard landing. 1
The retraction of the left main landing gear after landing for reasons that could not be determined during postaccident examinations. \r\n\r 1
The pilot’s loss of control and subsequent impact with terrain in instrument meteorological conditions. \r\n\r 1
The pilot's delayed decision to abort the takeoff. Contributing to the accident are an inadequate modification to the seat position, and the pilot's failure to check flight controls for freedom and correct movement. 1
The pilot's improper flare during a water landing. 1
The disengagement and subsequent binding of the right tailwheel steering cable, which disabled the rudder system. \r\n\r 1
The pilot's misjudgment of his helicopter's position relative to a parked helicopter during a pedal turn. 1
The partial loss of engine power during takeoff due to an improperly configured carburetor and fuel supply system. Contributing to the accident was the pilot's loss of airplane control during the off-field landing, which resulted in an aerodynamic stall. 1
The pilot’s failure to maintain adequate airspeed while maneuvering at an excessive bank angle at a low altitude, which resulted in an accelerated stall and spin with insufficient altitude for a recovery. \r\n\r 1
The pilot's failure to maintain aircraft control while landing, which resulted in a collision with a snow bank. Contributing to the accident was ice that covered the landing surface. 1
The noninstrument-rated pilot's encounter with instrument meteorological conditions (IMC) while maneuvering, which resulted in a loss of airplane control due to spatial disorientation. Contributing to the accident was the pilot's decision to attempt to descend into an area of widespread IMC. 1
The pilot’s decision to continue flight below the minimum descent altitude without visually acquiring the runway and his delayed and improperly executed missed approach procedure in instrument meteorological conditions.\r 1
The student pilot’s failure to maintain airplane control after engine start, which resulted in a ground collision with trees. \r 1
The hard landing due to a higher-than-forecast surface wind, which resulted in a serious neck injury to the pilot. 1
The pilot's intentional descent into the terrain.\r\n\r\n \r\n\r 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack during the climb, which resulted in an aerodynamic stall/spin. 1
A loss of airplane control for reasons that could not be determined because the airplane impacted water, and the majority of the wreckage was not recovered. \r 1
The pilot's improper fuel planning/management, which resulted in the total loss of engine power due to fuel exhaustion and the subsequent forced landing in a pasture. 1
An in-flight failure of the helicopter's #2 main rotor spindle due to undetected fatigue cracking, which resulted in an in-flight breakup. Contributing to failure were the nonconforming thread root radius of the spindle and the manufacturer's failure to include a bending moment within the spindle threads when performing the fatigue analysis during initial design of the spindle. 1
The student pilot's loss of directional control during takeoff from a runway, which resulted in a collision with a sign. 1
The pilot’s continuation of a banked turn following the loss of engine power, which resulted in his failure to maintain adequate airspeed and the airplane exceeding its critical angle of attack and entering an accelerated stall at low altitude. Contributing to the accident was the loss of engine power due to carburetor icing as a result of the airplane's degraded carburetor heat system. 1
The pilot's inadequate preflight planning and fuel management which resulted in fuel exhaustion. 1
The failure of the airplane pilots to maintain an adequate visual lookout for known traffic in the traffic pattern, which resulted in a midair collision. Contributing to the accident was the failure of the airplane pilots to announce their intentions before landing, and the helicopter pilots' lack of specificity in their radio communications. 1
The flight instructor’s failure to maintain adequate rotor rpm during the practice touchdown autorotation, which resulted in a subsequent loss of helicopter control and impact with terrain.\r 1
The pilot's delayed action to use carburetor heat before the engine experienced a total loss of power while operating at cruise flight in conditions conducive to carburetor icing. \r\n\r 1
The pilot's failure to maintain directional control during the takeoff roll into sunlight, which restricted his visibility. 1
A fault in the No. 1 engine control module, which disabled the ignition system and resulted in the engine losing power; during the subsequent autorotation, the main rotor rpm was further reduced just before touchdown, which resulted in a hard landing. 1
Both pilots’ inadequate visual lookout and failure to see and avoid each other while in level cruise flight, which resulted in a midair collision. Contributing to the accident was the obscuration of the pilot’s visibility due to sun glare. \r 1
The pilot's failure to maintain airspeed during approach in variable wind, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. \r\n\r 1
The student pilot’s improper fuel management, which resulted in a loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s inadvertent switching of the fuel selector to the “off” position during the attempted engine restart.\r 1
The non-helicopter-rated pilot's improper decision to operate the helicopter at low-level and his inability to adequately see the horizon over snow and ice, which resulted in controlled flight into terrain. 1
The pilot's failure to compensate for gusty wind conditions during the landing flare, which resulted in a hard landing and subsequent nose landing gear collapse. 1
The flight instructor and pilot-rated student's inadequate preflight inspection, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's improper control inputs which resulted in a loss of control and rollover during the takeoff roll. 1
The pilot's loss of airplane control due to spatial disorientation and light ice accumulation while operating in night, instrument meteorological conditions with gusting wind. 1
The pilot's failure to maintain adequate airspeed during the instrument approach in night instrument meteorological conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall/spin at a low altitude. 1
The pilot's failure to note that icing conditions existed in the airport area despite having received that information in a preflight briefing, which resulted in his flight into an area of icing and the subsequent loss of airplane control due to ice accumulation on the airplane.\r\n\r 1
Maintenance personnel’s improper installation of the engine data monitor (EDM), which was not in accordance with the supplemental type certificate instructions and resulted in engine warning indications and the pilot’s subsequent reaction to the warning indications due to his lack of experience with the EDM and airplane.\r\n\r 1
The student pilot's initiation of the flare while too high above the runway, resulting in an aerodynamic stall, hard landing, and loss of directional control. 1
The pilot's rejected takeoff due to perceived flight control system anomalies, which led to excessive brake temperatures and resulted in a right main landing gear brake fire. 1
The mechanic’s failure to detect the incorrect dry valve tappet clearances while troubleshooting ongoing engine issues, which resulted in partial loss of engine power during takeoff. Contributing to the partial loss of engine power was the mechanic's failure to inspect the dry tappet clearances in accordance with the engine operator's manual and a referenced service instruction. 1
The pilot's inadequate flare and failure to maintain airplane control during the landing with a tailwind which resulted in a bounce, long landing, and subsequent runway excursion. 1
The pilot's failure to conduct all of the required items on the Before Starting Engines checklist, which resulted in her failure to detect an open hydraulic circuit breaker and led to insufficient hydraulic pressure to operate the airplane's brakes, her subsequent loss of airplane control, and ground collision with an airplane. 1
An in-flight fire and a partial loss of engine power for reasons that could not be determined based on the available information.\r\n\r 1
A partial loss of engine power for reasons that could not be determined because the airplane was ditched and not recovered. 1
The pilot's inability to transfer fuel from the aft auxiliary fuel tank to the main fuel tanks for reasons that could not be determined because the airplane was ditched and not recovered.\r\n\r 1
The flight instructor's decision to initiate flight into forecasted icing conditions in an airplane that was not certified or equipped for flight into icing conditions, which resulted in significant structural ice accumulation to the extent that the airplane was unable to maintain altitude.\r\n\r 1
The pilot's loss of control while landing in gusty wind conditions. 1
The pilot's inadequate preflight weather planning and decision to land in an area with known convective wind gusts, which resulted in a loss of control and subsequent hard landing. 1
The pilot's failure to maintain control of the airplane while operating under visual flight rules (VFR) in night, instrument meteorological conditions, likely due to spatial disorientation. Contributing to the outcome was the radar controller's failure to follow published guidance for providing assistance to VFR pilots having difficulty flying in instrument conditions. 1
The pilot’s failure to maintain control of the airplane while landing. 1
The pilot's failure to maintain airspeed during landing, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's failure to obtain a preflight weather briefing, and his subsequent flight into icing conditions, which resulted in the accumulation of ice on the airframe. 1
The loss of engine power on approach due to fuel exhaustion, which resulted from the pilot's improper preflight fuel planning and inspection. 1
The flight instructor's delayed remedial action in response to the student pilot's improper go-around, which resulted in the airplane exceeding its critical angle of attack, experiencing an aerodynamic stall, and impacting a parked airplane. 1
The pilot’s failure to remove ice from the airplane’s surfaces before departure, which resulted in the airplane’s inability to attain sufficient airspeed shortly after takeoff, the subsequent exceedance of the airplane’s critical angle-of-attack, and an aerodynamic stall. \r\n\r 1
The pilot's failure to maintain control while maneuvering at low altitude, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. 1
The flight instructor’s failure to maintain airspeed during an approach with a simulated engine failure, which resulted in an exceedance of the wing’s critical angle-of-attack and a subsequent aerodynamic stall/spin.\r 1
An in-flight separation of the helicopter’s horizontal stabilizer due to undetected fatigue cracking of the stabilizer spar, which resulted in a loss of control.\r 1
The pilot's inadequate instrument scan during cruise flight, which resulted in his failure to notice a loss of engine oil pressure. Contributing to the accident was the failure of the oil pressure transducer supply line, which resulted in oil exhaustion and a total loss of engine power. 1
Pilot's inadequate control of the airplane during the landing roll, which resulted in a runway excursion. 1
A partial loss of engine power during cruise flight for reasons that could not be determined because the airplane was not recovered. \r 1
The loss of engine power due to fuel starvation. \r\n\r 1
The loss of engine power for reasons that could not be determined during a postaccident examination of the airplane.\r 1
The pilot's improper landing flare and loss of airplane control, which resulted in a hard landing and the subsequent failure of the nose landing gear. 1
The total loss of engine power due to impact ice obstructing the primary air induction system, which resulted from the student pilot’s failure to operate the alternate air control. Contributing to the accident was the student pilot’s lack of knowledge about using the alternate air control during an engine power loss. \r\n\r 1
The student pilot’s loss of airplane control during a go-around after not applying sufficient engine power. \r\n\r 1
Loss of engine power after takeoff for reasons that could not be determined because postaccident examination did not reveal any evidence of an anomaly that would have precluded normal operation. 1
An in-flight loss of control for reasons that could not be determined based on available information. 1
The pilot’s loss of directional control during takeoff, which resulted in a runway excursion.\r\n\r 1
The pilot's improper fuel management and failure to conduct the engine failure emergency procedures and his improper conduct of the forced landing, which resulted in fuel starvation, a total loss of engine power, and the subsequent high-energy impact with power lines and terrain. Contributing to the accident was pilot fatigue.\r\n\r 1
An in-flight loss of control for reasons that could not be determined during postaccident investigation; the loss of control likely occurred during a simulated loss of power in the right engine during an instructional flight. 1
The pilot's improper landing technique which resulted in a hard landing and subsequent nose landing gear collapse. 1
The student pilot's lack of vigilance during taxi, which resulted in a collision with a parked truck. A factor in the accident was the truck operator's decision to park on the edge of an active taxiway. 1
The pilot did not maintain control of the airplane while landing in gusting crosswind conditions. 1
The pilot’s physical impairment due to intense pain, which resulted in his failure to maintain airplane control.
\r 1
The pilot’s intentional flight into terrain.\r\n\r 1
A loss of engine power for reasons that could not be determined due to postaccident fire damage.\r\n\r 1
A partial loss of engine power during initial takeoff climb for reasons that could not be determined because postaccident examination revealed no evidence of a mechanical anomaly that would have precluded normal operation. \r\n \r 1
The flight instructor's inadequate supervision of the student while landing, which resulted in a ground loop. Contributing to the accident was the student pilots failure to maintain directional control of the tailwheel-equipped airplane during the landing roll. \r\n\r\n \r\n\r\n \r\n\r 1
The failure of the nose landing gear (NLG) leg due to fatigue fractures, which resulted in the NLG collapsing during landing. 1
The pilot’s failure to maintain airplane control while maneuvering at low altitude, which resulted in the airplane’s wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall . 1
The pilot’s decision to continue flight into known severe thunderstorm conditions, which resulted in the loss of engine power during the descent due to the engine’s ingestion of water and ice and a subsequent forced landing. 1
The pilot's failure to monitor the flight environment for adequate terrain/obstacle clearance, which resulted in the inflight collision with power transmission line wires. 1
The pilot's improper landing flare, which resulted in a bounced landing and damage to the airplane. 1
The pilot's failure to maintain adequate airspeed on final approach, which resulted in an in-flight loss of control and hard landing. 1
The pilot's failure to land with sufficient runway remaining to safely stop the airplane. 1
The pilot's failure to maintain airplane pitch, power, and turn coordination while maneuvering at low altitude, resulting in an aerodynamic stall and a collision with terrain. 1
An in-flight impact with terrain for reasons that could not be determined based on available evidence. \r\n \r 1
The pilot's inadequate preflight and mismanagement of the fuel supply, which resulted fuel exhaustion. 1
A stuck aileron due to a battery that had become jammed in the aileron bell crank. 1
The instructor's delayed remedial actions, and the student pilot's failure to maintain adequate airspeed, which resulted in a stall just above the ground and the subsequent hard landing. 1
The pilot’s failure to maintain directional control while taxiing as a result of his impairment due to alcohol ingestion. \r\n \r 1
The partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical anomalies that would have precluded normal operation.\r 1
The pilot's loss of directional control during landing, which resulted in a ground loop. 1
The pilot's loss of directional control to the right for reasons that could not be determined during examination of the right main landing gear wheel and brake drum. 1
an inadvertent encounter with convective turbulence resulting in serious injury to a flight attendant. 1
The pilot's inadequate preflight planning and subsequent failure to remain clear of power line wires while maneuvering at low altitude. 1
The pilot's inadequate preflight fuel planning that resulted in a total loss of engine power due to fuel exhaustion, and the pilot's failure to maintain control of the helicopter during the subsequent autorotation landing. 1
The student pilot's failure to maintain adequate airspeed during the approach to landing which resulted in an aerodynamic stall and a hard landing. 1
The pilot’s failure to abort the takeoff after the partial loss of engine power before liftoff, and the partial loss of engine power for undetermined reasons. \r 1
The student pilot's failure to maintain airplane attitude control during the landing, resulting in a hard landing. 1
The pilot's improper reduction of the fuel mixture while the airplane was descending on the final leg of the traffic pattern, which resulted in a total loss of engine power and subsequent aerodynamic stall.\r 1
An elevated oil temperature and subsequent total loss of engine power for reasons that could not be determined based on the available information. 1
The pilot's improper approach to landing and his failure to perform a go-around, which resulted in a runway overshoot and collision with trees. 1
A loss of tail rotor effectiveness while maneuvering at low altitude, resulting in a collision with trees. 1
A collapse of the left main landing gear for reasons that could not be determined based on the available information. 1
The pilot's failure to extend the landing gear, which resulted in substantial damage to the fuselage during landing. Contributing to the accident was the pilot's distraction from completing his before landing checklist and inability to hear the gear warning horn annunciator in his headphones. 1
The pilot’s decision to take off ahead of an approaching severe thunderstorm, which resulted in an encounter with hazardous weather conditions that led to a loss of airplane control.\r 1
The glider pilot over-ran the runway and impacted a structure after encountering a strong updraft on short final. 1
The pilot's failure to monitor the airplane's wing clearance during taxi, which resulted in a collision with a parked airplane. 1
The pilot's decision to conduct a landing to a field in high wind conditions, which resulted in a hard landing and subsequent injury to a passenger. 1
The pilot's failure to maintain control during takeoff due to his impairment from marijuana. Contributing to the accident was the pilot’s impaired decision to fly after using a disqualifying drug. 1
The failure of the nose landing gear upper drag link knee bolt due to reverse-bending fatigue, which was likely preceded by excessive bearing wear due to reasons that could not be determined based on the available evidence.\r\n \r 1
Collision with an obstacle during the landing roll, which resulted in a loss of control and subsequent runway excursion and tree strike. 1
The pilot's improper in-flight fuel management, which resulted in fuel exhaustion in the selected tank, and his delayed movement of the fuel selector handle to the other tank, which resulted in a loss of engine power due to fuel starvation. 1
The pilot's failure to maintain directional control during a high-speed water taxi in rough water conditions, resulting in a collision with a dock. 1
The pilot's failure to maintain directional control during the landing, resulting in a runway excursion. 1
The private pilot's failure to maintain clearance from a spruce tree during final approach, which resulted in a loss of control and hard landing. Contributing to the accident was the flight instructor's failure to adequately monitor the landing. 1
The pilot’s inadvertently turning on the starter switches, which turned off the generators and resulted in a loss of electrical power and gear-up landing. Contributing to the accident was the pilot’s failure to follow the emergency procedures for a loss of electrical power or to manually extend the landing gear.\r 1
The student pilot's improper flare and loss of control which resulted in a hard landing. 1
The pilot's failure to extend the landing gear before landing. Contributing to the accident was the pilot's decision to continue the approach to landing while distracted and his failure to complete the landing checklist. 1
The pilot's excessive braking during landing, which resulted in a nose over. 1
A partial loss of engine power due to the turbocharger's seizure as a result of a severely worn turbowheel. Contributing to the accident was the failure of the pilot/owner to have the turbo normalization system inspected every 100 hours as required, which allowed erosion on the exhaust side of the turbowheel to go undetected. 1
The pilot’s flight into developing rain showers and updrafts, which resulted in a loss of airplane control and collision with terrain. Contributing to the accident were the pilot’s continued flight into forecast adverse weather conditions, and his reliance on weather technologies with known limitations and processing delays.\r 1
A loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. \r\n\r 1
The failure of the No. 4 engine cylinder due to fatigue, resulting in a catastrophic failure of the engine. 1
The pilot's execution of a steep left turn at low altitude during an aborted landing, which resulted in an aerodynamic stall, and a collision with terrain. 1
The failure of the fuel control unit due to the worn stub shaft spline, which resulted in an engine overspeed. Contributing to the accident was maintenance personnel's inadequate inspection of the fuel control unit. 1
The deliberate concealment and reuse of an unairworthy tail rotor driveshaft by unknown personnel, which resulted in an overstress separation at a bonded flange adapter as a result of driveshaft imbalance. 1
The pilot landed off the right side of the runway resulting in a collision with terrain. 1
The pilot's failure to maintain directional control during the landing roll and his deliberate application of excessive braking pressure. 1
The noninstrument-rated pilot’s decision to continue visual flight rules flight in instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. \r 1
The pilot’s continued visual flight into instrument flight rules conditions, which resulted in his failure to maintain sufficient clearance from rising terrain.\r 1
The pilot's improper lateral/ bank level off during the landing flare, which resulted in the right wing impacting the water and a subsequent loss of control. 1
The pilot's failure to maintain attitude control during the landing roll. A contributing factor was the pilot's lack of training and experience in this airplane make and model. 1
The non-certificated pilot's failure to maintain airspeed during takeoff, which resulted in an aerodynamic stall, uncontrolled descent, and collision with terrain. Contributing to the accident was the pilot's lack of training and flight experience in the accident airplane. 1
An engine flame-out due to fuel starvation as the result of an improperly-installed auxiliary fuel pump fitting, and the pilot's failure to promptly feather the propeller following the engine-flame out, which resulted in decreased glide capability and impact with terrain. Contributing to the accident was the pilot's operation of the airplane with no emergency electric propeller feathering system. 1
the flight attendant's failure to secure her lap belt and shoulder harness prior to the takeoff that resulted in her being thrown from her jumpseat shortly after takeoff. 1
The pilot's failure to remove the gust lock during the preflight inspection, resulting in a loss of control and collision with trees during takeoff. 1
The flight instructor’s failure to tell the student pilot to abort the takeoff after the powered parachute experienced wing oscillations, which resulted in the student pilot’s loss of aircraft control during initial climb and subsequent impact with terrain. Contributing to the accident was the flight instructor's decision to conduct training in a powered parachute without dual flight controls. 1
The pilot's selection of unsuitable terrain for a precautionary landing, which resulted in a nose over. 1
The pilot's failure to maintain airplane attitude control during the landing flare, which resulted in an aerodynamic stall, hard landing, and runway excursion. 1
The pilot's failure to maintain altitude, which resulted in collision with the terrain. Contributing to the accident was the pilot's impairment from carbon monoxide exposure in flight. The source of the carbon monoxide could not be determined because the wreckage could not be completely recovered.\r\n\r 1
The student pilot's failure to maintain directional control while landing with a crosswind. 1
The pilot's loss of directional control during takeoff, which resulted in a runway excursion and impact with a building. 1
The pilot's incorrect action to continue the takeoff when he failed to maintain directional control during the takeoff roll. 1
The pilot's failure to maintain airspeed, resulting in a loss of control, and a collision with terrain. 1
The in-flight separation of the exhaust tube at a weld joint due to erosion and corrosion, which resulted in a subsequent in-flight fire. 1
The pilot's failure to maintain sufficient airspeed during the initial climb after takeoff, which resulted in the airplane’s wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. 1
evacuation of the aircraft due to reported, but unverified, aircraft condition and poor communication between Aircraft Rescue and Firefighting personnel and the flight crew. 1
The fatigue fracture of the tail rotor gearbox attachment studs, which resulted in a loss of tail rotor control and a subsequent hard landing. \r 1
The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion, and a collision with terrain. 1
The pilot's failure to maintain adequate airspeed for the approach to landing. 1
The pilot's failure to adjust the airplane's useful load to compensate for the high temperature, which resulted in an insufficient climb rate to clear surrounding terrain, and a runway excursion. 1
The pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion, and a collision with a sign. 1
The pilot's failure to maintain directional control during the landing flare, which resulted in the airplane impacting a rice field and nosing over. 1
The partial loss of engine power during takeoff due to debris within the fuel servo, which restricted fuel flow throughout the engine fuel system and resulted in a partial loss of engine power. 1
inadvertent encounter with turbulence while deviating around an area of known convective activity. 1
Maintenance personnel's improper engine oil drain valve installation, which led to engine oil exhaustion and the subsequent loss of engine power after takeoff at an altitude too low for the pilot to execute a forced landing in a suitable area. 1
The student pilot’s decision to continue the approach and landing despite recognizing that the wind speed was above the published limit for solo flight, which resulted in a porpoised landing. Contributing to the accident was the failure of the flight instructor and supervisor of flying to direct the student to go around or divert. \r 1
Firewall damage reported by maintenance personnel that occurred during an unknown phase of flight, because the accident flight and pilot could not be determined. 1
The pilot's failure to maintain directional control, which resulted in a runway excursion, and a collision with a sign. 1
A loss of left braking action for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical failures or malfunctions that would have precluded normal operation, which resulted in a loss of directional control. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle-of-attack, which resulted in an aerodynamic stall and loss of control. 1
A manufacturing defect that resulted in fatigue failure of the left main landing gear trunnion. 1
The total loss of engine power during a low-level aerial application flight due to fuel exhaustion following the pilot’s inadequate preflight inspection that led to his assumption that sufficient fuel was on board for the flight based on his reliance on a fuel gauge that indicated the incorrect fuel level.\r 1
The flight instructor’s failure to verify that the left engine was operational, which resulted in insufficient engine power being available during an attempted go-around and his subsequent loss of airplane control. Contributing to the accident was the instructor's inadequate monitoring of the approach, which led to his failure to notice that the airplane was lined up with a taxiway and necessitated the go-around. \r\n\r 1
The pilot's failure to complete the required before landing checks, resulting in the execution of a gear up landing causing substantial damage to the lower fuselage of the airplane. 1
The pilot's excessive use of wheel brakes during landing, resulting in a nose over. 1
The flight instructor's delayed remedial action during the landing flare, which resulted in a hard landing and porpoise. 1
The pilot's continued flight into thunderstorm activity, which resulted in his loss of airplane control, the exceedance of the airplane's design limits, and its subsequent in-flight breakup. Contributing to the accident was the pilot's reliance on onboard weather equipment to navigate through severe weather. 1
The pilot's failure to maintain adequate airspeed following a partial loss of engine power during initial climb, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Also causal was the mechanic's inadequate inspection of the airplane fuel system, which resulted in the partial loss of engine power due to fuel contamination. 1
The pilot’s failure to properly set the stabilator trim prior to takeoff, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall during takeoff.\r 1
The pilot’s inadequate preflight fuel planning and inflight fuel management, which resulted in a total loss of engine power due to fuel exhaustion. \r\n\r 1
The pilot's delay in conducting an aborted landing and his subsequent failure to establish a proper airspeed during the attempted go-around on a hot day, which resulted in the airplane’s inability to climb and a subsequent stall/mush. 1
The pilot's failure to attain adequate airspeed to climb the airplane out of ground effect, which resulted in an aerodynamic stall and a collision with terrain. 1
The incorrect installation of the secondary seat stop reel which resulted in the pilot's loss of control when the seat moved full aft during takeoff. 1
The pilot/builder's failure to properly adjust the fuel flow, which resulted in reduced flow to the engine and a subsequent total loss of engine power. \r 1
A loss of glider control for reasons that could not be determined based on the available evidence and the glider’s severe fragmentation. 1
The pilot’s failure to maintain adequate clearance from power transmission lines during an aerial application flight.\r 1
The failure of the engine-to-transmission drive shaft coupling assembly due to a fatigue fracture of one of its attachment bolts, which resulted in a loss of power to the main rotor. \r\n\r 1
The other pilot’s failure to maintain an adequate visual lookout, which resulted in a midair collision. Contributing to the accident was the other pilot’s failure to follow Federal Aviation Administration-recommended traffic pattern procedures. 1
The pilot's failure to follow the airplane's operating limitations by rapidly opening the throttle, which resulted in a loss of engine power. Contributing to the accident was the pilot's decision to maneuver the airplane at low altitude even though he was not taking off or landing. 1
A total loss of engine power for reasons that could not be determined because engine examination and testing did not reveal any anomalies that would have precluded normal operation. 1
The pilot's loss of aircraft control, which resulted in an aerodynamic stall. 1
A loss of control for reasons that could not be determined, because examination of the airframe and engine revealed no anomalies that would have precluded normal operation. 1
The pilot's failure to maintain adequate airspeed while maneuvering, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. 1
The pilot's failure to maintain sufficient airspeed following a loss of engine power during initial takeoff climb, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. The reason for the loss of engine power could not be determined because examination of the wreckage revealed no mechanical deficiencies. Contributing to the accident was the pilot's decision to conduct an intersection takeoff. 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack while maneuvering for landing, which resulted in an aerodynamic stall. 1
A total loss of engine power due to the failure of the No. 2 bearing, which resulted from a fractured separator.\r\n\r 1
A total loss of engine power during cruise flight due to a failure of the No. 1 piston and connecting rod assembly. 1
The pilot's failure to maintain directional control during takeoff, which resulted in a collision with a building. 1
The pilot's improper landing flare which resulted in a hard landing and substantial damage to the firewall. 1
The loss of engine power for reasons that could not be determined because a postaccident engine examination and test run did not reveal any evidence of preimpact malfunctions or failures that would have precluded normal operation.\r 1
The pilot’s failure to establish a proper airspeed and angle-of attack during takeoff in elevated density altitude and light tailwind conditions, which resulted in an aerodynamic stall. 1
The pilot's failure to attain suitable altitude while flying over high mountainous terrain in downdraft conditions. 1
The pilot's and flight instructor's improper brake application during the landing roll. Contributing to the accident was the flight instructor's failure to make a positive transfer of controls. 1
The pilot's failure to ensure adequate clearance from the spinning propeller while traversing the area between the leading edge of the wing and the nose of the airplane. Contributing to the accident was the decision to leave the cockpits of the airplanes unattended while the engines were idling and gear was being loaded on board. 1
The flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab. \r 1
A loss of directional control and subsequent ground loop due to an underinflated right tire, which was a result of foreign object debris puncturing the tire. 1
An exceedance of the airplane's takeoff/climb capability, which resulted in a stall during initial climb at an altitude that was too low for recovery. 1
The pilot’s failure to maintain control of the airplane while landing in gusty, crosswind conditions that likely exceeded the recommended limitation of the airplane.\r\n\r 1
The pilot's failure to maintain adequate airspeed while maneuvering at a low altitude, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. 1
The arcing failure of the windshield heat power wire on the right windshield due to unknown reasons. Contributing to the severity of the fire was the lack of training or guidance provided to the crew for selecting the windshield heat to off that would cut power to the circuit. 1
Unintentional collision with a deer during landing in dusk visual conditions. 1
The pilot inadvertently reducing engine power to the idle position while maneuvering at a low altitude. 1
The pilot's improper level off and flare in crosswind conditions, which resulted in a loss of control and hard landing. 1
The partial loss of engine power during initial climb due to a loose set screw, which allowed the throttle cable rig within the connector to slip. 1
The loss of engine power due to a malfunctioning magneto. Contributing to the accident was maintenance personnel's improper use of a drill bit instead of a timing pin during magneto installation, which resulted in a section of the drill bit breaking off and ultimately to the magneto failure.\r\n\r 1
The pilot's failure to maintain airplane control during a go-around in gusting tailwind conditions, which resulted in a collision with trees. 1
The controller's issuance of a landing clearance to an arriving aircraft while another aircraft was in position on the same runway. Contributing to the incident was the controller's non-compliance with traffic advisory procedures, and insufficient requirements for use of memory aids to track arrival and departure operations. 1
A total loss of engine power for reasons that could not be determined because postaccident engine examination and testing revealed no mechanical anomalies that would have precluded normal operation. 1
The pilot's failure to attain adequate airspeed after takeoff and his exceedance of the airplane’s critical angle-of-attack during the initial climb, which resulted in an aerodynamic stall at too low an altitude to recover. 1
Water contamination in the fuel system due to the flight instructor’s and pilot receiving instruction’s failure to drain all the water from the system during the preflight inspection, which resulted in a loss of engine power. 1
The pilot's decision to continue flight into known icing conditions, contrary to the airplane’s limitations, which resulted in a total loss of engine power due to icing. 1
The pilot’s continued visual flight into instrument meteorological conditions, which resulted in his failure to maintain sufficient clearance from rising terrain. \r 1
The pilot's failure to follow the Before Landing checklist and to extend the landing gear and the flight instructor’s inadequate supervision, which resulted in a gear-up landing. 1
The loss of engine power during takeoff for reasons that could not be determined during postaccident examination of the engine or testing of the carburetor. 1
A loss of main rotor rpm for reasons that could not be determined during postaccident examinations.\r 1
Unknown maintenance personnel’s inadequate securing of a wiring bundle during a maintenance, repair, or modification event, which led to chafing of the wiring bundle, an electrical short and arcing, and a subsequent in-flight fire.\r 1
The pilot's failure to maintain aircraft control during the takeoff roll, which resulted in a collision with the ground. 1
The fuel truck driver's inattention, which resulted in backing over a warning cone and into the horizontal stabilizer of the airplane. 1
The pilot’s failure to maintain adequate airspeed during the landing resulting in an inadvertent aerodynamic stall and hard landing. \r 1
Maintenance personnel’s failure to properly repair a propeller deformation, which resulted in a fatigue crack, separation of a propeller blade tip, and forced landing onto uneven terrain.\r 1
The total loss of engine power due to the use of an improper fuel type. Contributing to the accident were the servicing of the airplane with the improper fuel, noncompliance with an airworthiness directive, and the fuel nozzle installed on the fueling truck. 1
The uncontained engine failure due to the fatigue failure of the second-stage turbine rotor disk. 1
The pilot's misjudged airspeed and glidepath, which resulted in a landing area overshoot and runway excursion. 1
The pilot's inadequate recovery from a bounced landing, resulting in a loss of control and collision with terrain. 1
The student pilot's failure to maintain pitch control, resulting in a hard landing. 1
The pilot's failure to maintain clearance from obstacles during an off airport precautionary landing roll. 1
The pilot's intentional descent into terrain. 1
The pilot's attempt to land in strong crosswind conditions, resulting in his on-ground loss of control. Contributing to the accident was the crosswind that exceeded the crosswind limits of the airplane. 1
The pilot's inadequate weight and balance and performance planning, including his decision to take off with more passengers than permitted, and his exceedance of the airplane’s critical angle of attack during the initial climb, which resulted in an aerodynamic stall and impact with terrain. 1
An inflight fire and a total loss of engine power due to oil starvation, after separation of the No. 3 cylinder exhaust valve rocker box cover for reasons that could not be determined based on the available information. 1
The pilot's failure to maintain an adequate descent rate, resulting in a hard landing. 1
The partial loss of engine power due to contamination of the fuel system. 1
The noncertificated pilot's loss of directional control during takeoff, which resulted in impact with a utility pole and hangar. Contributing to the accident was the pilot's failure to obtain flight instruction before attempting to fly the aircraft. 1
The pilot's failure to stop the airplane on the runway during landing, resulting in an overrun, landing gear collapse and substantial damage to the airplane. 1
A total loss of engine power due to fuel starvation as a result of a mechanic’s failure to properly tighten the B-nut to the fuel pump inlet during a recent annual inspection. Contributing to the accident was the pilot's decision to take off despite indications that the engine was not operating normally. 1
The pilot's improper decision to land the airplane with a quartering, gusting tailwind and his subsequent failure to flare the airplane and maintain directional control after it bounced, which resulted in a runway excursion. 1
The pilot's selection of unsuitable terrain/location for takeoff in gusting wind conditions, resulting in a collision with a building, and substantial damage to the hot air balloon. 1
The pilot's failure to maintain the descent rate, resulting in a hard landing. 1
The pilot's failure to maintain pitch control during the landing. Contributing to this accident was the pilot's lack of experience with the airplane's performance characteristics during the approach resulting in a hard landing and runway excursion. 1
A rapid onset of smoke and/or fire inflight for reasons that could not be determined due to the postimpact fire and the condition of the wreckage. 1
The pilot's excessively high angle-of-attack on rotation that prevented the airplane from climbing sufficiently to avoid the approaching trees. 1
The pilot's inadequate compensation for wind conditions during the landing, which resulted in a hard landing and separation of the left main landing gear. 1
The pilot's excessive pitch control inputs to the airplane’s sidestick control, which resulted in an overstress of the airframe and its subsequent in-flight breakup. Contributing to the accident was the pilot's decision to operate the airplane contrary to the manufacturer's flight test policy. 1
The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's inadequate compensation for the crosswind during landing. 1
The noninstrument-rated pilot's controlled flight into terrain due to an inadvertent encounter with clouds in dark night conditions. Contributing to the accident was the pilot's decision to fly at night in marginal visual meteorological conditions without the proper training and without obtaining a weather briefing. 1
The pilot's failure to maintain control of the airplane while maneuvering, which resulted in an uncontrolled descent and structural failure. Contributing to the accident was the pilot's impairment from his use of diphenhydramine. 1
The pilot's failure to maintain control of the helicopter during flight, which resulted in the helicopter impacting terrain. 1
The pilot’s loss of airplane control while maneuvering for reasons that could not be determined because an examination of the airframe and engine did not reveal any preimpact abnormalities.
\r 1
The pilot's excessive descent rate during approach, which resulted in a hard landing. 1
The pilot's use of an incorrect radio frequency when attempting to turn on the runway lights, resulting is an attempt to land the airplane while aligned with airport hangar lights. 1
The engine failure due to oil starvation, which resulted from the installation of an unapproved oil quick drain valve that subsequently led to the inadvertent draining of the oil when the nose landing gear was retracted. Contributing to the accident was the lack of required warning placards on the engine mounts.\r 1
A blown nose landing gear tire during landing, which resulted in the pilot’s inability to maintain directional control.\r 1
The in-flight separation of the attachment hardware at the elevator control pushrod due to maintenance personnel's improper reinstallation of the attachment hardware. 1
The glider's encounter with severe turbulent atmospheric conditions after the pilot inadvertently entered clouds, which led to his inability to maintain a proper airspeed and the subsequent in-flight breakup of the glider. 1
The pilot's failure to maintain airplane control while taxiing in unfavorable wind conditions. 1
A total loss of engine power during takeoff due to an interruption of fuel flow to the engine. The reason for the interruption of the fuel flow could not be determined during postaccident examination and testing. 1
The pilot's spatial disorientation during a low-level river crossing in rainy, gray, reduced visibility meteorological conditions, which resulted in the helicopter's subsequent descent and impact with the water. Contributing to the accident was the pilot's decision to attempt the low-level crossing under those meteorological conditions.\r 1
The pilot's improper flare which resulted in a loss of control and subsequent hard landing. 1
The pilot's failure to perform a go-around in time to prevent a runway overrun and collision with terrain. 1
The pilot's failure to maintain control of the airplane during the instrument approach in night instrument meteorological conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall/spin. Contributing to the accident were pilot fatigue, the pilot's increased workload during the instrument approach resulting from the lack of glideslope guidance due to an inadequately connected/secured glideslope antenna cable, and the airplane being loaded aft of its balance limit. 1
The pilot's improper landing flare, which resulted in a hard landing, the nosewheel tire bursting, and a subsequent porpoise and nose-over. 1
The pilot's attempt to depart in conditions that resulted in the airplane having insufficient performance capability, which resulted in a collision with a tree. 1
the fracture of one 1st stage turbine blade from a high cycle fatigue crack that originated from a break in the coating on the leading edge of the blade. The cause for the break in the coating could not be determined. Contributing to the uncontained release of turbine material was the yielding and rupture of the turbine exhaust case wall after turbine debris collected at probes in the case. 1
The pilot's failure attain/maintain pitch control prior to attaining a proper takeoff speed during takeoff roll, which resulted in a premature liftoff of the airplane and loss of control. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the glider’s critical angle
of
attack during the initial climb after a ground-tow launch, which resulted in an aerodynamic stall/spin. 1
The pilot’s incapacitation due to a cardiovascular event, which resulted in a loss of control and subsequent impact with terrain.\r\n\r 1
The pilot's failure to maintain control of the airplane while encountering a wind gust after landing. 1
The pilot's failure to properly apply carburetor heat in conditions conducive to carburetor icing, which resulted the accumulation of carburetor ice and the subsequent total loss of engine power. 1
The pilot's failure to maintain directional control during the landing roll in variable, gusting wind conditions, resulting in a runway excursion, and substantial damage to the airplane. 1
The pilot's failure to maintain airplane control, resulting in a hard landing. 1
The total loss of engine power for reasons that could not be determined due to thermal damage and because postaccident examination of the engine revealed no anomalies that would have precluded normal operation. 1
The pilot's failure to maintain control while landing in gusty wind conditions. 1
A partial loss of engine power after takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. 1
Abnormal runway contact which precipitated a loss of control and nose-over. 1
The pilot's excessive collective application during an autorotation. Contributing to the accident was the flight instructor's inadequate supervision of the training flight.\r 1
The pilot’ failure to maintain adequate clearance from trees while maneuvering during an aerial application flight. 1
The flight instructor's delayed flare during a simulated auto rotation, which resulted in a tail rotor strike and rollover. 1
The pilot's use of the improper fuel grade for the engine, which resulted in detonation, engine damage, and loss of engine power. 1
The pilot's excessive descent rate and subsequent hard landing during the landing flare/touchdown. 1
The ingression of moisture into the windshield’s laminate layer, which induced electrical arcing in the windshield heating system that subsequently cracked the outer glass pane of the windshield.\r 1
A loss of lift, which precipitated a forced off airport landing, and collision with terrain. 1
The pilot and flight instructor's inadvertent encounter with settling with power during a confined area takeoff at an altitude that was too low for recovery. 1
The mechanic's incorrect installation of two aileron cables and the subsequent inadequate functional checks of the aileron system before flight by both the mechanic and the pilot, which prevented proper roll control from the cockpit, resulting in the pilot's subsequent loss of control during flight. Contributing to the accident was the mechanic's and the pilot's self-induced pressure to complete the work that day.\r\n\r\n \r\n\r 1
The landing airplane pilot's failure to maintain directional control during landing, which resulted in a runway excursion and ground collision with a taxiing airplane. 1
The collision of the helicopter's skid shoe with the runway centerline light during landing, which abruptly stopped the helicopter and resulted in damage to the fuselage. 1
A partial loss of engine power due to contamination in the fuel manifold, which resulted in a collision with terrain shortly after takeoff. 1
The pilot's decision to attempt an off airport takeoff, and failure to maintain adequate clearance during the initial climb in crosswind conditions, which resulted in a collision with trees. 1
The pilot's failure to land beyond the marked runway threshold, which resulted in a collision with a culvert and a loss of control on the ground. 1
A total loss of engine power due to foreign object (towel) ingestion. Contributing to the accident was maintenance personnel’s inadequate postmaintenance inspection of the engine. 1
The partial loss of engine power during takeoff due to oil starvation. \r 1
The pilot's failure to follow the Preflight checklist and his inadequate preflight inspection, during which he failed to detect the water contamination of the fuel, which resulted in a partial loss of engine power during initial climb. 1
Improper base metal preparation or contamination of the No. 5 cylinder wall before it was coated, which resulted in the coating peeling off of the cylinder wall and contaminating the engine oil and the subsequent partial loss of engine power. 1
A total loss of engine power during cruise flight due to piston fatigue cracking for reasons that could not be determined due to postfracture smearing damage. \r\n\r 1
The flight crew’s inadequate preflight inspection of the nose landing gear strut, which resulted in the nosewheel not being aligned during retraction and the subsequent loss of directional control. Contributing to the accident was the failure of the nose landing gear strut due to inadequate pressure and excessive wear.\r 1
A disconnection of the tailwheel steering mechanism during landing, which resulted in the pilot’s loss of directional control.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a collision with objects while attempting to abort the landing. 1
A total loss of engine power while maneuvering at low altitude for reasons that could not be determined during postaccident examination. 1
The pilot’s improper preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. 1
The flight instructor's failure to maintain directional control, which resulted in a ground loop on takeoff. 1
The pilot's failure to see and avoid power lines while intentionally maneuvering at low altitude for the aerial observation flight. 1
The pilot’s inadequate visual lookout, which resulted in his airplane landing on top of the other airplane. 1
The pilot's excessive use of brakes to maintain directional control, which resulted in a nose over. 1
The pilot's failure to monitor the airplane's movement and maintain control of the airplane. 1
the CRJ900 captain's misjudgment of the clearance between their horizontal stabilizer and the B757 winglet. 1
The pilot's failure to maintain directional control of the airplane during takeoff, resulting in substantial damage to the airplane. 1
The loss of engine power due to the separation of the distributor gear arm on the left magneto. 1
The noncertificated pilot's continued visual flight into instrument meteorological conditions, which resulted in spatial disorientation leading to the pilot's loss of control of the airplane and subsequent collision with mountainous terrain. \r\n\r 1
The failure of the left main landing gear leg for reasons that could not be determined based on the available evidence. \r 1
The pilot's failure to properly configure the airplane for landing. Contributing to the accident were pilot fatigue, distraction, and complacency and the failure of the landing gear warning horn to sound for reasons that could not be determined based on the available information. 1
The pilot's excessive airspeed during landing, which resulted in abnormal runway contact, a runway excursion, and substantial damage to the airplane. 1
Both pilots' failure to see and avoid each other, which resulted in an on-ground collision while taxiing. Contributing to the accident was the ground controller's failure to notify either pilot about the presence of the other airplane on the taxiway. 1
The pilot's encounter with extreme turbulence during descent over mountainous terrain, which resulted in a loss of control, and structural damage in flight. 1
The pilot’s failure to maintain adequate airspeed, which increased the induced drag and led to the engine having insufficient power to overcome the drag and climb the airplane and resulted in a forced landing and the subsequent collapse of the main landing gear.\r 1
A partial loss of engine power due to the failure of the throttle body/fuel metering unit to provide the engine with adequate fuel pressure for full power operation. \r 1
The helicopter rescue specialist was not properly attached to the hoist system, which resulted in a fall during a night hoist operation.\r\n\r 1
Maintenance personnel’s incorrect installation of the fuel selector valvehandle, which resulted in fuel starvation, a loss of engine power, and a forced hard landing. Contributing to the accident was the pilot's failure to follow the manufacturer's checklist. 1
The pilot's decision to perform aerobatic maneuvers in an airplane not certified for aerobatic flight, which resulted in a loss of control and collision with terrain. 1
The noncertificated pilot's failure to maintain airspeed following a loss of engine power while maneuvering at a low altitude, which resulted in the airplane's wing exceeding its critical angle-of-attack and a subsequent aerodynamic stall. The reason for the loss of engine power could not be determined because postaccident examination revealed no evidence of mechanical failure or malfunction. \r\n\r 1
The student pilot's failure to maintain attitude control during the landing flare, resulting in a hard landing. 1
The pilot's failure to recover from a bounced landing, which resulted in substantial damage to the airplane during the runway overrun. 1
The pilot’s inadequate in-flight fuel management, which resulted in a total loss of engine power due to fuel starvation.\r 1
The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's inability to restart the engine for reasons that could not be determined because postaccident examination of the engine and fuel system revealed no anomalies that would have precluded normal operation. \r\n\r 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion. 1
structural failure of the left wing due to an overspeed condition. 1
A total loss of engine power due to carburetor icing. \r\n\r 1
The impact with power lines for reasons that could not be determined based on the available information. 1
A partial loss of engine power for reasons that could not be determined because a postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r 1
The inadvertent encounter with a microburst while maneuvering near mountainous terrain, which resulted in a off airport landing and impact with terrain. 1
The pilot's decision to rotate the propeller by hand without properly securing the airplane. 1
The student pilot's failure to maintain airplane control during the initial climb. Contributing to the accident was the student's inappropriate configuration of the airplane's wing flaps for the initial climb. 1
A loss of engine power on downwind for landing due to carburetor icing, which resulted in a forced landing. 1
The pilot's failure to recover from a controlled descent for reasons that could not be determined during the postaccident investigation. 1
The pilot's loss of positional awareness while taxiing, resulting in a collision with a parked and unoccupied airplane. Contributing to the accident was the pilot's difficulty seeing over the nose of the airplane, his preoccupation with trying to control the airplane in the wind, and his minimal experience in the airplane. 1
The overstress fracture of the nose landing gear actuator (NLG) attachment lug during tow operations, which resulted in the collapse of the NLG. 1
The ground crewman’s failure to hold onto the passenger door while the main rotor was still rotating, which resulted in the door separating from the helicopter and damaging the main rotor.\r\n\r 1
The pilot’s decision to depart on inadequate runway surface conditions that resulted in a loss of control after attempting to abort the takeoff, a runway excursion, and a nose over.\r 1
The pilot's failure to maintain airplane control following a partial loss of engine power during a low-level aerobatic maneuver; the reason for the loss of engine power could not be determined during postaccident examination of the engine. Contributing to the accident was the pilot's exceedance of the airplane's published maximum gross weight and center of gravity limits for the acrobatic category. 1
The student pilot's improper cyclic input while hovering and the flight instructor's delayed remedial action, which resulted in a dynamic rollover. \r 1
The student pilot's improper landing flare, which resulted in a hard, bounced landing, and his subsequent failure to maintain directional control, which resulted in a runway excursion and collision with a drainage culvert.\r\n\r\n\r 1
The in-flight separation of a propeller blade for reasons that could not be determined based on the available evidence, which resulted in an off-airport landing on soft sand and the separation of main landing gear. Contributing to the accident was the pilot’s selection of an unsuitable landing area.\r\n\r\n\r 1
An in-flight collision with a bird.\r 1
The pilot's use of excessive braking control during the landing roll, which resulted in a nose
over. \r 1
Impact with terrain for reasons that could not be determined based on the available information.\r\n\r\n\r 1
The pilot's failure to maintain directional control during landing on a grass runway in gusting wind conditions, which resulted in impact with a large bush. \r 1
The pilot's failure to attain the proper rotor speed before takeoff, which resulted in the rotor blade striking the rudder. Contributing to the accident was the pilot's failure to abort the takeoff in a timely manner.\r 1
The pilot's improper decision to maneuver at a low altitude and in close proximity to a wind turbine undergoing maintenance, which resulted in a collision with a tagline rope being held by a worker on the ground and serious injury to the worker.\r 1
The student pilot's overapplication of the brakes during landing to avoid a deer on the runway, which resulted in a nose-over. 1
The student pilot's improper landing flare, which resulted in a hard, bounced landing and subsequent nose-over. 1
The pilot's failure to replace the oil filler cap during his preflight inspection, which resulted in oil starvation and a subsequent total loss of engine power. \r 1
The pilot’s failure to ensure adequate fuel onboard and his subsequent failure to maintain airspeed while maneuvering which resulted in an aerodynamic stall following a total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s impairment due to his use of marijuana.\r 1
The pilot receiving instruction's failure to relinquish the flight controls to the flight instructor during a simulated engine failure during takeoff, which resulted in the airplane touching down in a left banking attitude and the landing gear collapsing.\r\n\r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing on water, and his failure to maintain airplane control during a go-around, which resulted in the airplane nosing over. \r 1
The pilot's unstabilized approach, which resulted in a hard, bounced landing, loss of directional control, and impact with a tree and then terrain. 1
The pilot's improper pitch control during takeoff in high, gusting wind conditions, which resulted in a runway overrun and the nose landing gear collapsing. \r\n\r\n\r 1
The student pilot's failure to attain sufficient airspeed to climb out of ground effect, which resulted in a descent, loss of directional control, runway excursion, and impact with a fence. \r\n\r\n\r 1
The pilot's failure to maintain a proper glidepath, which resulted in a collision with trees. 1
The pilot's fixation on the instrument panel, which resulted in a hard landing. 1
a bird strike during climb out. 1
The pilot receiving instruction's failure to maintain directional control and his inadvertent left brake pedal application during the landing roll, which resulted in a runway excursion and ground-loop. \r\n\r\n\r 1
The airplane’s in-flight collision with a bird.\r 1
The pilot of the Cessna's failure to set the parking brake before diverting his attention inside the airplane, which resulted in his airplane colliding with the airplane ahead of it on the taxiway.\r 1
The pilot's failure to maintain lateral control during takeoff, which resulted in impact with terrain. Contributing to the accident was the pilot’s improper decision to make his first flight in an airplane he unfamiliar with before waiting for calm winds.\r 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain lateral control during a go-around, which resulted in impact with a tree.\r 1
The pilot's failure to maintain control of the helicopter while landing, which resulted in a hard landing and dynamic rollover. Contributing to the accident was the pilot's lack of helicopter experience.\r 1
The pilot's failure to maintain a proper approach angle in dark night conditions, which resulted in a collision with treetops and a subsequent hard landing. \r\n\r\n\r 1
The pilot's improper approach path, which resulted in impact with a tree.\r 1
The pilot's improper landing flare, which resulted in a hard landing, loss of directional control, and impact with a fence. \r 1
The pilot's failure maintain clearance from power lines, which resulted in an explosion and preimpact fire.\r\n\r\n\r 1
The pilot's unstable approach and delayed decision to go-around. Contributing to the accident was the unporting of the fuel supply following a forward slip maneuver during the approach, which resulted in the loss of engine power during the go-around.\r 1
The pilot's failure to maintain directional control during takeoff in gusting wind conditions, which resulted in a runway excursion and impact with sand hummocks. \r 1
The pilot's failure to maintain directional control during an aborted landing with a crosswind, which resulted in tailwheel impacting vegetation and the left main landing gear collapsing. 1
The pilot's failure to latch the canopy before departure, which resulted in the canopy opening and the subsequent loss of airplane control. 1
***This report was modified on June 4, 2020. Please see the docket for this accident to view the original report.*** \r\n\r\nThe departing pilot's failure to see and avoid the arriving airplane as it was turning off the runway from which the departing pilot was taking off. 1
The pilot's failure to maintain lateral control during takeoff, which resulted in impact with terrain and a subsequent cartwheel. 1
The pilot's decision to land on unsuitable terrain, which resulted in a nose-over.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and ground-loop. \r 1
The pilot's failure to maintain clearance from trees during departure. Contributing to the accident was the pilot's inadequate preflight assessment of the field for takeoff. 1
The pilot’s and the passenger's improper decision to have the passenger attempt to move a wheel chock while the propeller was turning, which resulted in a serious injury. \r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's delayed application of carburetor heat in weather conditions conducive to carburetor icing, which resulted in a partial loss of engine power, a precautionary landing, and impact with terrain. \r\n\r 1
The pilot's improper approach, which resulted in his failure to maintain clearance from a tree while landing in dusk conditions, and his subsequent loss of directional control, which resulted in a runway excursion.\r 1
The pilot's failure to maintain bank control and adequate altitude during the approach, which resulted in his failure to maintain the runway heading and a subsequent collision with trees and terrain. \r\n\r\n\r 1
The pilot's failure to extend the landing gear due to intoxication during an unauthorized flight. \r\n\r\n\r 1
The pilot's exceedance of the airplane’s critical angle of attack during the landing approach, which resulted in a loss of control and a subsequent aerodynamic stall/spin. Contributing to the accident was the pilot's decision to fly the airplane in a configuration for which it was not certificated and in which the flight characteristics were not known. \r 1
The pilot's failure to maintain the runway heading while taking off with a gusting tailwind, which resulted in impact with a fence. 1
The pilot's failure to maintain a proper descent rate during the approach and his improper landing flare, which resulted in a hard landing. 1
The student pilot's improper landing flare, which resulted in a porpoised landing, a subsequent hard landing on grass left of the runway, and a nose-over. Contributing to the accident was the student’s self-imposed pressure to land the airplane \r\n\r\n\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with a ditch. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a wing strike. \r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack during landing, which resulted in an aerodynamic stall.\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, a total loss of engine power, and an off-airport landing, during which the airplane landed hard and then ground looped. 1
The pilot's failure to maintain lateral control and to attain adequate altitude during takeoff with a quartering tailwind in gusting wind conditions, which resulted in impact with a sandy berm left of the runway. 1
The pilot’s low final approach path and his failure to see and avoid a truck traveling on a roadway, which resulted in a collision with the truck. \r 1
The pilot's failure to maintain clearance from power wires while maneuvering at a low altitude. 1
The pilot’s failure to maintain a proper approach and the flight instructor's subsequent failure to maintain an adequate climb rate during an attempted go-around in gusting tailwind conditions, which resulted in a hard landing and dynamic rollover.\r\n\r\n\r 1
a software timing error initiated by a battery charging script that was not properly terminated prior to the test flight due to operator error. 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and ground-loop. \r 1
The landing gear manufacturer’s incorrect wiring of the wheel speed transducer harnesses on the left main landing gear during overhaul. The incorrect wiring caused the antiskid system not to function as intended, resulting in the failure of the left outboard tire and a significant loss of the airplane’s braking ability, which led to the runway overrun. Contributing to the accident were (1) Saab’s design of the wheel speed transducer wire harnesses, which did not consider and protect against human error during maintenance; (2) the Federal Aviation Administration’s lack of consideration of the runway safety area dimensions at Unalaska Airport during the authorization process that allowed the Saab 2000 to operate at the airport; and (3) the flight crewmembers’ inappropriate decision, due to their plan continuation bias, to land on a runway with a reported tailwind that exceeded the airplane manufacturer’s limit. The safety margin was further reduced because of PenAir’s failure to correctly apply its company-designated pilot-in-command airport qualification policy, which allowed the accident captain to operate at one of the most challenging airports in PenAir’s route system with limited experience at the airport and in the Saab 2000 airplane. 1
The pilot's failure to maintain a proper descent rate, which resulted in a hard landing and the main rotor blades striking the tailboom. 1
The pilot's failure to maintain directional control during landing after a wing struck vegetation, which resulted in a runway excursion and subsequent ground-loop. 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and a total loss of power to both engines.\r\n\r 1
The pilot's failure to maintain a proper approach path, which resulted in impact with a tree. 1
The glider pilot's improper approach during landing, which resulted in collision with trees. \r 1
The pilot's improper decision to continue taxiing the airplane on unsuitable terrain, which resulted in a nose-over.\r 1
The pilot's failure to maintain directional control during landing with a gusting crosswind, which resulted in a runway excursion and the left wing impacting grass.\r 1
The pilot's improper fuel management, which resulted in fuel starvation and a total loss of engine power.\r 1
The passenger’s inadvertent application of the brakes during landing, which resulted in a nose-over. \r\n\r\n\r 1
The pilot's failure to maintain directional control during takeoff, and the flight instructor's delayed remedial action, which resulted in a runway excursion and nose over.\r 1
an inflight collision with a hard object of polycarbonate construction, with size and features consistent with that of a small UAS (drone).\r 1
The student pilot's improper landing flare, which resulted in a bounced landing, and the flight instructor’s delayed remedial action and the student’s failure to relinquish control, which resulted in a runway overrun and impact with a fence. \r\n\r\n\r 1
The pilot's inadequate preflight performance planning and his operation of the airplane outside of the manufacturer's specified weight and balance limitations, which resulted in a failure of the airplane to become airborne, an aborted takeoff, and subsequent runway excursion.\r 1
The pilot’s failure to maintain directional control during take-off, which resulted in a collision with crop and terrain.\r 1
The pilot's loss of directional control while landing in gusting wind conditions.\r 1
A total loss of engine power due to the failure of the engine’s Nos. 3 and 4 bearings and the power turbine pinion gear, and subsequent loss of main rotor rpm, which resulted in a loss of control and impact with the water.\r 1
The arcing failure of the windshield heat L2 power wire on the right windshield due to unknown reasons.\r 1
The pilot’s loss of control due to spatial disorientation. Contributing to the accident were the inoperative attitude indicator and horizontal situation indicator on the pilot’s side of the cockpit, and the pilot’s failure to reference the flight instruments that were operative.\r 1
The pilot's improper decision to depart from an ice-covered runway with a strong crosswind, which resulted in a loss of directional control, runway excursion, and impact with a ditch.\r 1
A burner flameout, which resulted in the pilot's inability to arrest the balloon’s descent and its subsequent impact with power lines as he was trying to relight the burner. \r 1
The pilot's improper touchdown, which resulted in a hard landing and an overload failure of the right main landing gear leg and its associated shock/dampener.\r 1
The pilot's selection of unsuitable terrain for landing, which resulted in impact with a knoll and a subsequent ground-loop. \r 1
The student pilot's failure to maintain directional control and his use of excessive braking while taxiing. \r\n\r\n\r 1
The pilot’s failure to maintain the proper descent rate during the approach to landing, which resulted in a hard landing and serious injury to a passenger.\r 1
The single-engine pilot’s failure to yield to traffic established on the taxiway, which resulted in a ground collision.\r 1
The student pilot's failure to establish a positive climb rate during an aborted landing, which resulted in abnormal runway contact, a subsequent loss of directional control, runway excursion, and the right main landing gear collapsing. 1
The total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's decision not to visually confirm the remaining fuel onboard during the intermediate stop.\r 1
an encounter with clear air turbulence during cruise flight.\r 1
The solo student pilot's improper cyclic input during takeoff, which resulted in dynamic rollover. \r 1
The pilot’s improper fuel planning which resulted in a total loss of engine power due to fuel exhaustion.\r 1
A total loss of engine power during approach to land due to carburetor icing during a simulated engine failure, which resulted in impact with trees.\r 1
The student pilot’s failure to maintain yaw control during takeoff, which resulted in an aborted takeoff and subsequent landing on grassy terrain, during which the airplane bounced and then nosed over.\r 1
The pilot’s failure to maintain control of the airplane.\r 1
The airplane's impact by a bird during the initial climb.\r 1
A total loss of engine power due to the failure of the No. 5 cylinder exhaust valve, which resulted in an forced off-airport landing. \r 1
The pilot's failure to maintain directional control during the landing roll with a quartering tailwind, which resulted in a collision with an airport sign and subsequent ground-loop.\r 1
Incorrect control inputs by the student pilot during a crosswind landing, resulting in control saturation and a runway excursion. 1
The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion and impact with vegetation. \r 1
The pilot’s inadvertent flight into icing conditions, which resulted in the accumulation of structural icing and an aerodynamic stall. \r 1
The student pilot's improper cyclic input after a reported hydraulic failure, the reason for which could not be determined, and his failure to follow the emergency procedures, which resulted in a hard landing. \r\n\r\n\r 1
The pilot's improper wind correction while taking off with a tailwind, which resulted in a runway excursion and subsequent nose-over.\r 1
The pilot's unintentional retraction of the landing gear during the landing roll. 1
The pilot's failure to maintain proper pitch control during takeoff from a muddy, turf runway and his exceedance of the airplane's critical angle of attack during the initial climb, which resulted in an aerodynamic stall. \r\n\r 1
The pilot's failure to follow the taxiway centerline guide and his distraction due to adjusting the radio, which resulted in his failure to maintain clearance from a taxiway light after landing and while taxiing to a ramp. \r 1
The pilot's failure to properly set the parking brake before exiting an operating airplane, which resulted in a runaway airplane and subsequent impact with trees. 1
The pilot's failure to maintain proper clearance from a tractor trailer during landing. 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and the left main landing gear collapsing. \r 1
The student pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with a taxiway sign. \r 1
The pilot's improper pitch attitude during landing on rising terrain in flat light conditions, which resulted in a hard landing. 1
The airplane’s impact with a deer while landing.\r 1
The student pilot's use of excessive ground speed while making a right turn when exiting the runway, which resulted in a loss of directional control and a runway excursion. 1
The pilot's failure to verify that the engine oil tank contained adequate oil for the cross-country flight, which resulted in a total loss of engine power as a result of lack of lubrication. Contributing to the accident was the incorrect oil consumption information listed in the pilot operating handbook.\r 1
The pilot's hard, bounced landing and the flight instructor's delayed remedial action, which resulted in a fracture of the nose landing gear mounting structure. \r\n \r 1
The pilot's improper landing flare, which resulted in a bounced landing. 1
Fatigue fracture of the main rotor blade tip cap leading edge and subsequent partial separation of the tip cap, resulting in increased vibrations in the main rotor.\r 1
The pilot's use of excessive braking during landing, which resulted in a nose-over. \r 1
A stuck brake caliper, which overheated while the pilot was taxiing the airplane, caught fire, and subsequently destroyed the airplane. \r 1
The pilot's improper fuel management, which resulted in fuel starvation and a total loss of engine power, and his subsequent improper landing flare, which resulted in a hard, bounced landing. Contributing to the accident were the pilot's improper preflight inspection during which he failed to see that the right fuel cap was not secured. 1
The pilot’s improper flare, which resulted in a bounced landing, his improper airplane configuration during the attempted go-around, which resulted in the airplane not climbing, and his subsequent landing off the side of the runway.\r 1
The pilot's failure to see and avoid wires during approach to landing.\r 1
The pilot’s loss of control shortly after takeoff in instrument meteorological conditions for reasons that could not be determined based on the available information.\r 1
The automobile driver's incursion onto an active runway, which resulted in a collision with a landing airplane.\r 1
The pilot's distraction due to an open canopy during final approach, which resulted in a loss of altitude and ground impact short of the runway.\r\n\r\n\r 1
The pilot’s loss of control due to spatial disorientation while departing in dark night conditions, which resulted in impact with terrain. Contributing to the accident was the pilot’s limited experience flying in night conditions. \r 1
The pilot's focus inside the cockpit during the base turn and final approach, which led to a high sink rate developing and a subsequent hard landing short of the runway. \r\n\r\n\r 1
The pilot’s loss of airplane control during the landing flare, which resulted in a loss of directional control and ground-loop.\r 1
The student pilot's improper release of the throttle and failure to maintain lateral control during takeoff. \r\n\r 1
The student pilot's failure to maintain directional control during the landing roll due to his foot slipping off the right pedal and becoming stuck between the pedal and fuselage frame, which resulted in a runway excursion and impact with a ditch. 1
The total loss of engine power due to fuel exhaustion, which resulted from the pilot's inadequate preflight fuel inspection.\r 1
The pilot's improper pitch control during takeoff and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. Contributing to the accident was the flight instructor's failure to take remedial action.\r\n\r\n\r 1
The pilot's overapplication of brakes during the landing roll, which resulted in a noseover. \r 1
The total loss of right engine power due to fuel starvation and the pilot's improper fuel management. 1
The pilot's failure to maintain a proper descent rate, which resulted in a hard landing. \r\n\r\n\r 1
One of the pilot’s inadvertent application of the airplane's brakes, which resulted in a nose over. \r 1
Overload failure of the left main landing gear during landing, which resulted in a loss of directional control.\r 1
Misalignment of the fuel selector valve when the right fuel tank was selected, which restricted fuel flow and resulted in a total loss of engine power due to fuel starvation.\r 1
an encounter with convectively induced turbulence associated with towering cumulus clouds during descent.\r 1
The pilot's improper decision to land downwind from unsecured debris, which resulted in the helicopter’s main rotor disk ingesting foreign objects.\r\n\r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack during the initial climb after takeoff, which resulted in an aerodynamic stall and loss of control at an altitude too low for recovery. \r 1
The pilot's exceedance of the airplane's critical angle of attack during takeoff in gusting, variable wind conditions, which resulted in a loss of airplane control and subsequent impact with water. \r\n\r\n\r 1
The pilot's failure to maintain directional control during a crosswind landing, which resulted in an impact with a tree.\r\n\r 1
The pilot's failure to maintain a positive climb rate after takeoff due to spatial disorientation, which resulted in the airplane’s descent into water.\r 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack during a low pass, which resulted in an aerodynamic stall and impact with terrain.\r\n\r\n\r 1
The student pilot’s failure to maintain control of the airplane, which resulted in the exceedance of the airplane’s critical angle-of-attack, an aerodynamic stall, and subsequent impact with terrain, and the student pilot’s non-compliance and lack of experience.\r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack during takeoff in gusting wind conditions. \r\n\r\n\r 1
The pilot’s decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation and a loss of control.\r 1
The pilot's failure to maintain clearance from a construction sign during taxi operations.\r\n\r\n\r 1
A total loss of engine power due to an obstructed fuel vent, and the flight instructor's failure to ensure that the student did an adequate preflight inspection, which resulted in a forced landing.\r 1
A total loss of engine power due to water contamination of the fuel, and the pilot's failure to conduct a preflight inspection.\r\n\r 1
The student pilot's improper landing flare, which resulted in a hard landing and a collapsed nose landing gear.\r\n\r\n\r 1
The pilot's improper taxi speed and his excessive use of brakes, which resulted in a brake fire and substantial thermal damage to the airplane.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and a ground loop. \r 1
The flight instructor's improper decision to perform a precautionary landing on unsuitable terrain, which resulted in a noseover. \r 1
The student pilot's failure to maintain directional control during an aborted takeoff, which resulted in a runway excursion and impact with runway signs while attempting to maneuver back onto the runway.\r 1
The student pilot's improper landing flare and the flight instructor's delayed remedial action during landing, which resulted in a loss of airplane control and impact with terrain.\r\n\r\n\r 1
A blockage of the pitot static system that preclude the airspeed indicator from displaying speeds greater than 40 mph, which led the pilot to abort the landing and overrun the runway.\r 1
The collapse of the left main landing gear for undetermined reasons.\r 1
The pilot's improper approach, which resulted in a long landing, a runway overrun, and collision with a drainage culvert. \r\n\r\n\r 1
A catastrophic engine failure and forced landing due to the separation of the No. 1 connecting rod as a result of migration of the connecting rod piston pin bushing. Contributing to the accident was the mechanic’s failure to follow manufacturer guidance during the most recent oil change, which likely would have detected bushing material lost from the rod piston pin, which would have indicated impending migration and connecting rod failure.\r 1
The pilot's improper approach path at night and his misjudgment of the landing point, which resulted in landing short of the runway and impact with the runway's engineered materials arrestor system.\r\n\r\n\r 1
The pilot's failure to maintain proper wind correction input during taxi in a gusting tailwind, which resulted in a nose over. 1
The pilots’ decision to enter a canyon at low altitude, which resulted in controlled flight into terrain while attempting to exit the canyon. \r 1
The owner's improper installation of the tailwheel, which resulted in the pilot's inability to maintain directional control during landing as a result of severe tailwheel vibrations.\r 1
The pilot's improper landing flare during an autorotation, which resulted in a hard landing. Contributing to the accident was a loss of engine power for reasons that could not be determined because postaccident examination revealed no evidence of any preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.\r\n\r\n\r 1
The pilot’s failure to maintain control of the airplane while landing with a tail wind, which resulted in an aerodynamic stall and a subsequent hard landing..\r 1
The pilot's improper landing flare, which resulted in a hard landing and the subsequent loss of directional control and impact with a tree.\r 1
The pilot's failure to maintain yaw and pitch control while repositioning the helicopter, which resulted in dynamic rollover. \r\n\r\n\r 1
an encounter with convective turbulence during descent. 1
an encounter with mountain wave turbulence.\r 1
The pilot's delayed climb and misjudgment of the airplane’s performance and the runway distance needed to clear obstacles at the end of the runway, which resulted in a collision with trees and subsequent impact with terrain. Contributing to the accident was the pilot's insufficient experience landing and taking off at mountain airports.\r 1
The pilot's improper landing flare, which resulted in a bounced, hard landing and propeller strike, and his subsequent loss of directional control. \r 1
The pilot’s decision to maneuver the airplane at a low altitude, which resulted in impact with power lines and terrain. \r 1
A failure of the aft left weld-on fuselage landing gear fitting due to a poor weld joint. \r 1
The pilot's loss of directional control and subsequent overapplication of rudder pedal, which resulted in a runway excursion and the right wing striking the ground. \r 1
The student pilot's improper landing flare, which resulted in a bounced landing, and his subsequent loss of directional control and a hard landing. 1
The inappropriate application of paint underneath the engine cylinder hold-down nuts, which resulted in inadequate torque and the subsequent in-flight separation of the No. 3 cylinder, and resulted in a total loss of engine power. \r 1
The pilot's failure to maintain adequate airspeed while maneuvering to avoid mountainous terrain, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. \r\n\r\n\r 1
A loss of engine power due to the separation of the carburetor from the intake socket resulting from the improper installation of the intake silencer.\r 1
The student pilot's improper pitch attitude during the takeoff climb, and the flight instructor's delayed remedial action which resulted in an aerodynamic stall and ground impact. 1
The pilot's selection of unsuitable terrain for a simulated rejected takeoff, which resulted in a runway overrun and noseover. \r 1
The student pilot's failure to maintain directional control during landing with a crosswind, which resulted in a runway excursion and impact with approach lights. \r\n\r\n\r 1
The pilot's selection of unsuitable terrain for landing and the pilot's improper pitch control during the landing roll which resulted in a nose over. 1
The flight instructor's inadequate supervision of the student's soft-field takeoff, which resulted in an excessive pitch attitude, settling effect, and impact with a ditch off the end of the runway.\r 1
The pilot's failure to maintain directional control during landing with a crosswind, which resulted in a runway excursion and impact with a runway light.\r\n\r\n\r 1
The pilot's failure to maintain an adequate climb rate during takeoff in gusting wind conditions, which resulted in an uncontrolled descent.\r\n\r\n\r 1
The pilot's improper flare, which resulted in a hard landing.\r 1
The pilot's improper landing flare, which resulted in an aerodynamic stall and hard landing.\r 1
A propeller overspeed due to failure of the electronic ignition timing ring attachment screws, and a runway overrun during the subsequent forced landing. \r\n\r 1
The pilot's improper fuel management, which resulted in fuel starvation, a total loss of engine power, and an off-airport landing and impact with vegetation and a ditch. Contributing to the accident was the pilot's failure to follow the Emergency Power Loss During Flight checklist. \r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop.\r\n\r 1
The pilot's loss of directional control while landing, which resulted in a runway excursion and collision with terrain. \r 1
The passenger’s inadvertent retraction of the landing gear during the landing roll without being instructed to do so by the pilot. \r 1
A partial loss of engine power due to the mechanic's failure to properly tighten the two clamps securing the flexible coupling from the intercooler to the induction inlet.\r\n\r 1
The pilot's improper fuel management, which resulted in fuel starvation, a total loss of engine power, and an off-airport landing, during which the airplane struck a vehicle. 1
The pilot's failure to install the engine oil filler cap before the first flight of the day; his subsequent failure to conduct a preflight check before the accident flight, which resulted in his failure to note that the cap was not installed; and his improper landing flare during a precautionary landing, which resulted in a bounced landing and ground loop.\r\n\r 1
The pilot's improper pitch trim setting during takeoff in a left quartering tailwind, which resulted in the airplane abruptly pitching up and subsequently experiencing an aerodynamic stall. Contributing to the accident was the pilot's failure to follow a preflight checklist and verify that the elevator trim tab was in the takeoff position.\r 1
The pilot’s exceedance of the airplane’s critical angle of attack during a short field takeoff, which resulted in an aerodynamic stall and loss of control.\r 1
The pilot's failure to maintain lateral control during takeoff with a quartering tailwind, which resulted in the right wing striking the ground, a runway excursion, impact with a fence, and a subsequent noseover. \r 1
The pilot's decision to fly into terrain that exceeded the performance capabilities of the airplane, which resulted in failure to maintain clearance from trees and terrain.\r 1
The pilot's over application of power during recovery from a runway excursion, which resulted in a ground loop and nose over. 1
The pilot's improper landing flare, which resulted in a bounced landing and subsequent ground loop.\r 1
A total loss of engine power control for undetermined reasons.\r 1
The pilot's exceedance of the aircraft's critical angle of attack during a turn shortly after takeoff, which resulted in an aerodynamic stall and subsequent impact with terrain. Contributing was the pilot's lack of experience in the accident aircraft. 1
The pilot's failure to maintain proper forward airspeed and power during final approach, which resulted in a loss of tail rotor effectiveness and impact with terrain. \r\n \r 1
The student pilot's failure to maintain helicopter control while hover-taxiing in gusting wind conditions.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and nose down. \r 1
The pilot's decision to abort a go-around with insufficient runway remaining to safely stop the airplane, which resulted in a loss of control, runway excursion and impact with a concrete barrier. 1
The pilot’s failure to maintain control of the airplane, which resulted in a collision with terrain. Contributing was the pilot’s lack of training and experience in the accident airplane make and model.\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, a total loss of engine power, an off-airport landing, and impact with trees. \r 1
The pilot’s failure to properly manage the airplane’s configuration and airspeed after he shut down the No. 4 engine following its partial loss of power during the initial climb. Contributing to the accident was the pilot/maintenance director’s inadequate maintenance while the airplane was on tour, which resulted in the partial loss of power to the Nos. 3 and 4 engines; the Collings Foundation’s ineffective safety management system (SMS), which failed to identify and mitigate safety risks; and the Federal Aviation Administration’s inadequate oversight of the Collings Foundation’s SMS.\r 1
The student pilot's incorrect collective and cyclic applications during landing and the flight instructor's delayed remedial action, which resulted in a roll-over. \r\n\r 1
The pilot's selection of unsuitable terrain for taxi, which resulted in the landing gear collapsing and a nose-over. \r 1
The pilot's improper fuel management, which resulted in fuel starvation, a total loss of engine power, and impact with a pole during an off-airport landing. \r 1
The pilot's exceedance of the airplane’s critical angle of attack following a dual engine power loss caused by the line service technician fueling the airplane with the wrong fuel, which resulted in an aerodynamic stall and subsequent loss of control. Contributing was the pilot's inadequate supervision of the fuel servicing.\r 1
The pilot's improper landing flare and failure to maintain lateral control, which resulted in a hard landing, loss of directional control, and subsequent roll-over. \r\n\r\n\r 1
The pilot's excessive use of brakes during the landing roll, which resulted in a nose-over.\r 1
The partial loss of engine power for reasons that could not be determined based on the available evidence. \r 1
The pilot's continued visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation.\r\n\r 1
The pilot's failure to maintain lateral control while landing on glassy water, which resulted in the left float touching the water, a loss of yaw control, and impact with a riverbank.\r\n\r\n\r 1
The pilot's failure to maintain an adequate descent rate during landing, which resulted in a hard landing and a postaccident fire.\r\n\r\n\r 1
Maintenance personnel's improper installation of the nose landing gear assembly, which resulted in separation of the actuator arm and the failure of a nose landing gear to lock in place. \r 1
The pilot's improper preflight fuel planning and quantity inspection, which resulted in fuel exhaustion, a total loss of engine power, a forced landing on unsuitable terrain, and a subsequent nose-over. 1
The pilot's failure to move the fuel selector position to the "on" position before takeoff, which resulted in a total loss of engine power and necessitated a forced landing to a field shortly after takeoff, and his subsequent improper decision to take off from unsuitable terrain, which resulted in collision with an embankment and a postcrash fire. 1
The pilot's improper flight planning and his subsequent failure to maintain clearance from wires during takeoff. 1
The student pilot's improper landing flare, which resulted in a bounced landing and subsequent nose landing gear collapse. \r 1
The pilot's exceedance of the airplane's critical angle of attack during a go around, which resulted in an aerodynamic stall and a hard landing. 1
Inadequate maintenance of the airplane, which resulted in a lack of adequate hydraulic fluid, malfunction of the landing gear extension system, and the landing gear collapse on landing. \r\n\r 1
The student pilot's improper landing flare, which resulted in a hard, bounced landing and a nose landing gear collapse.\r\n\r\n\r 1
A loss of engine power for undetermined reasons.\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack while taking off from water in shifting wind conditions.\r\n\r\n\r 1
The pilot's loss of airplane control and his subsequent exceedance of the airplane's critical angle of attack during takeoff in variable, gusting wind conditions, which resulted in an aerodynamic stall.\r 1
The pilot's failure to maintain bank control during takeoff in gusting crosswind conditions, resulting in a loss of control in flight and subsequent impact with terrain. 1
The pilot's improper altitude and airspeed control during landing, which resulted in the airplane landing long and a subsequent runway overrun and impact with a drainage culvert. \r\n\r\n\r 1
The pilot's selection of unsuitable terrain for landing and his failure to maintain directional control during the landing, which resulted in the airplane hitting a rut, bouncing, and then nosing over. 1
Fatigue failure of the fasteners on the engine crankshaft, which resulted in a partial loss of engine power and a subsequent forced landing.\r 1
The student pilot's improper landing flare, which resulted in a porpoised landing and a nose landing gear collapse.\r\n\r\n\r 1
The pilot's failure to maintain control of the airplane for undetermined reasons.\r 1
The flight instructor’s improper decision to take off without adequate airspeed which resulted in degraded performance and a collision with trees. 1
The pilot receiving instruction's failure to maintain directional control during takeoff with a gusting, right quartering headwind, which resulted in a noseover. \r 1
The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering toward the final leg of the traffic pattern and facing the rising sun, which resulted in a subsequent aerodynamic stall at too low an altitude to recover.\r 1
A total loss of engine power due to fuel exhaustion.\r 1
A fire during the engine run-up for undetermined reasons. \r\n\r 1
The student pilot's improper landing flare, which resulted in a bounced, hard landing.\r 1
A loss of airplane control while maneuvering due to spatial disorientation after inadvertently entering instrument meteorological conditions (IMC). Contributing to the accident was the pilot's inexperience in IMC conditions. 1
The pilot's loss of control when the airplane encountered a downdraft during landing approach, which resulted in a subsequent hard landing and gear collapse. \r\n\r 1
The pilot's delayed decision to abort the takeoff from water after the airplane impacted a submerged object, which resulted in insufficient airspeed for liftoff and led to the pilot steering the airplane toward a mud embankment to avoid rocks. \r 1
The pilot's exceedance of the airplane's critical angle of attack during landing in gusting crosswind conditions, which resulted in an aerodynamic stall.\r 1
The pilot's improper preflight fuel planning, which resulted in fuel exhaustion, a total loss of engine power, and impact with a tree during an off-airport landing. \r 1
A partial loss of engine power due to fuel contamination with water, and the pilot’s failure to maintain control of the airplane during an attempted return to the airport shortly after takeoff, which resulted in an aerodynamic stall. \r 1
The pilot's improper takeoff configuration due to distraction, which resulted in the airplane’s failure to become airborne and its subsequent collision with rising terrain. Contributing to the accident was the pilot's failure to use the Before Takeoff checklist. \r\n\r\n\r 1
The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion and an impact with runway lights.\r\n\r\n\r 1
The pilot's improper decision to depart from an off-airport surface covered with standing water, which resulted in a noseover.\r 1
The pilot's improper cyclic input during takeoff, which resulted in a loss of helicopter control, the skid impacting the ground, and a subsequent dynamic rollover. \r 1
The student pilot's failure to maintain directional control during the aborted landing, which resulted in a runway excursion and impact with a ditch. \r\n\r\n\r 1
The noninstrument-rated pilot's loss of control due to spatial disorientation after encountering instrument meteorological conditions at night. \r 1
The pilot's improper landing flare, which resulted in a hard landing and postaccident fire. Contributing to the accident was the pilot’s distraction during short final.\r\n\r\n\r 1
The student pilot's inadvertent movement of the fuel shutoff switch to the “off” position while attempting to take a picture of himself, which resulted in a total loss of engine power due to fuel starvation and a subsequent ditching in open water.\r 1
The flight instructor's delayed remedial action, which resulted in his decision to perform an off field landing and the airplane's subsequent impact with terrain.\r 1
The student pilot's improper pitch and lateral control during a soft-field takeoff, which resulted in impact with terrain. Contributing to the accident was the student pilot's failure to relinquish control of the airplane to the instructor. \r 1
The pilot's diverted attention while taxing which resulted in his failure to maintain clearance from the skip loader during taxi. 1
The pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in a runway excursion and nose-over.\r\n\r\n\r 1
The pilot's failure to extend the landing gear before landing due to distraction by the condition of the runway and his failure to use the Before Landing checklist. \r 1
The pilot's failure to maintain a stabilized approach and improper landing flare, which resulted in a porpoised landing.\r 1
The pilot’s inadequate inflight planning resulted in impact with a power line.\r 1
The pilot's failure to maintain control of the airplane during takeoff in gusting wind conditions, which resulted in an uncontrolled turn and descent into terrain. \r 1
The pilot's failure to attain sufficient altitude during a go-around, which resulted in impact with hilly terrain.\r 1
The noncertificated pilot’s decision to take off through a large helicopter’s rotor wash, which resulted in his inability to gain altitude during takeoff. \r\n\r 1
The pilot's failure to maintain airplane control during landing with a gusting quartering tailwind.\r\n\r 1
The pilot's misjudgment of a ground spray rig’s position and his incorrect belief that a runway incursion might occur, which resulted in the pilot attempting and then aborting a go-around, which resulted in a runway excursion and collision with a fence.\r\n\r 1
The airplane's encounter with a sunken area during takeoff from a turf runway, which resulted in the airplane becoming prematurely airborne and impacting a tree and then terrain. 1
The flight instructor's failure to set the proper rotor rpm during a practice autorotation, which led to his failure to maintain a proper descent rate and resulted in a hard, bounced landing.\r\n\r\n\r 1
The pilot's failure to maintain airplane control after an aborted landing, which resulted in collision with trees. \r 1
The student pilot’s failure to maintain a stabilized approach and the flight instructor's delayed remedial action to initiate a go-around, which resulted in a runway overrun and impact with runway lights and fences.\r\n\r 1
The pilot's failure to maintain directional control during a high-speed taxi with a quartering tailwind, which resulted in a runway excursion and impact with a fence and terrain. \r 1
The pilot's failure to maintain directional control during the landing roll in gusting wind conditions, which resulted in a roll-over.\r 1
The loss of engine power due to fuel starvation as a result of unporting of the fuel tank supply pickup while the helicopter was maneuvered to move a conductor wire. Contributing to the accident was the helicopter’s inappropriate configuration for the type of operation being conducted, which impeded the pilot’s ability to release the long line and perform a successful emergency landing.\r 1
The flight instructor's improper landing flare, which resulted in a bounced landing, and his subsequent loss of directional control.\r 1
A gradual loss of engine power during takeoff due to the pressure regulator not keeping continuous fuel pressure which led to a precautionary off airport landing and collision with terrain. 1
The pilot's inadequate preflight inspection and fuel planning, which resulted in the loss of engine power due to fuel exhaustion.\r 1
The pilot's loss of control during a go around. 1
The pilot's inadvertent extension of the landing gear and his subsequent water landing with the wheels extended.\r\n\r 1
The pilot's failure to extend the landing gear for a runway landing, which resulted in a gear-up landing. 1
A primary control (aileron) system anomaly that progressively worsened during a test flight that resulted in a loss of control. The reason for the anomaly was not determined due to impact damage. \r 1
Seizure of the hydraulic pump pulley bearing due to its improper installation by the manufacturer, leading to a failure of the hydraulic pump belt and the resultant partial loss of hydraulic assistance to the pedals.\r 1
The collapse of the left main landing gear for reasons that could not be determined based on the available information.\r 1
The pilot's failure to maintain control of the airplane during the landing roll, which resulted in a nose over. 1
The uncertificated pilot's failure to maintain aircraft control during takeoff, which resulted in an impact with terrain.\r\n\r 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and ground-loop. \r\n\r 1
The pilot’s improper landing flare and subsequent loss of airplane control during a go-around when the airplane stalled and collided with the ground. 1
The collapse of the right main landing gear during a bounced, crosswind landing.\r 1
The flight instructor's delayed remedial action during a power-off approach and go-around in gusting wind conditions, which resulted in a hard landing, loss of directional control, and a runway excursion onto a field.\r\n\r\n\r 1
The pilot's loss of directional control and subsequent improper brake application during the landing roll in gusting wind conditions, which resulted in a nose-over. \r\n\r\n\r 1
The student pilot’s improper landing flare, which resulted in a bounced landing, subsequent loss of directional control, and the airplane going down an embankment.\r 1
The pilot's failure to maintain airplane control during landing in gusting crosswind conditions, which resulted in the wing striking the ground.\r\n\r\n\r 1
The pilot’s fuel mismanagement during flight, resulting in a total loss of engine power due to fuel starvation.\r 1
The in-flight failure of the lower left side of the engine cowling due to the mechanic’s improper installation of the fasteners, which resulted in the cowling impacting all four main rotor blades.\r 1
The owner/pilot's inability to maintain control of the airplane due to his lack of training and experience, resulting in a collision with a tree.\r 1
The pilot's unintentional selection of the wrong landing surface, which was covered with 2 ft of snow and resulted in a nose-over. 1
The partial loss of engine power due to water and contaminants in the fuel, due to the pilot’s inadequate preflight inspection, and the pilot’s decision to conduct a steep turn at low altitude to return to the runway rather than land straight ahead, which resulted in an aerodynamic stall. \r 1
The pilot's inadequate preflight fuel planning and inflight fuel management, which resulted in fuel exhaustion and a total loss of engine power.\r 1
The pilot’s improper decision to takeoff from a wet grass runway which did not allow for adequate braking traction when the pilot aborted the takeoff, which resulted in a runway excursion. 1
The pilot's loss of directional control during takeoff from an icy ski strip in gusting wind conditions, which resulted in the left wing impacting a tree.\r 1
The pilot's failure to maintain directional control during landing in gusting crosswind conditions, which resulted in a runway excursion and impact with vegetation. \r 1
The pilot's failure to extend the landing gear due to distraction and his delayed go-around, which allowed the airplane to get too low and contact the runway with the landing gear retracted. 1
The pilot's inadequate compensation for gusting crosswind conditions, which resulted in a loss of directional control, a runway excursion, and impact with a snowbank.\r 1
The flight instructor's delayed remedial action and decision to not go-around after a bounced landing, which resulted in an inadvertent stall and hard landing. 1
The pilot's failure to see and avoid a parked vehicle near the taxiway edge.\r\n\r\n\r 1
A loss of engine power after takeoff for undetermined reasons.\r\n\r 1
The pilot receiving instruction’s failure to maintain airplane control during a simulated engine failure landing and subsequent attempted go-around in gusting crosswind conditions and the flight instructor's delayed remedial action.\r 1
The pilot’s failure to apply full engine power during the initiation of a go-around in gusting wind conditions and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall at low altitude, and the flight instructor's delayed remedial action. \r 1
The pilot's loss of directional control during landing in gusting crosswind conditions, which resulted in a runway excursion and impact with a snowbank.\r 1
The noncertificated pilot's diverted attention while looking at a fire during low-altitude flying, which resulted in a collision with power lines.\r 1
The pilot's inadequate preflight planning and attempted takeoff with obstacles in the direction of departure, and his failure to maintain control of the airplane during the rejected takeoff. 1
The pilot’s failure to maintain airplane control during takeoff with a crosswind. 1
The pilot's failure to maintain clearance from a tree while maneuvering at low altitude.\r 1
The pilot's selection of unsuitable terrain for landing, which necessitated a go-around, and her subsequent failure to maintain clearance from rising mountainous terrain. \r\n\r\n\r 1
A hard landing that occurred at an unknown time and date, which resulted in substantial damage that was identified prior to a subsequent flight. \r\n\r 1
The motor glider's encounter with atmospheric lift conditions that were not sufficient to maintain flight, which necessitated a forced landing and resulted in impact with vegetation. Contributing to the accident was the pilot's delayed decision to restart the motor glider's engine. 1
The pilot's overapplication of the brakes during landing and the subsequent loss of directional control and nose-over.\r\n\r\n\r 1
The pilot's inadequate preflight inspection of the fuel level, which resulted in a total loss of engine power due to fuel exhaustion. \r\n\r\n\r 1
The pilot's loss of directional control during the landing roll, which resulted in a ground loop.\r 1
The pilot's failure to retract the speedbrakes during a delayed go-around attempt, which resulted in a runway excursion.\r 1
The pilot’s decision to attempt to " water ski" atop a remote river in a wheel-equipped airplane, resulting in a loss of control and a nose over. \r 1
The pilot's selection of unsuitable terrain for landing, which resulted in a collision with a ditch and the left main landing gear collapsing.\r\n\r\n\r 1
The pilot's loss of directional control while landing a tailwheel airplane in gusty wind conditions. 1
The pilot's delayed decision to abort the takeoff when the airplane was not attaining sufficient airspeed for takeoff and subsequently departed the end of the runway and collided with terrain. Contributing to the accident was the pilot's inadequate preflight preparation and planning and decision to takeoff with a tailwind.\r\n\r 1
The pilot’s failure to maintain a proper descent rate during landing in gusting wind conditions, which resulted in a hard landing.\r 1
The pilot's failure to maintain helicopter control in gusting wind that resulted in a loss in altitude and subsequent collision with a fence. 1
The pilot’s failure to maintain control of the airplane during the takeoff.\r 1
The pilot's failure to maintain airplane directional control during a gusty crosswind landing.\r 1
The pilots failure to switch the fuel pump to the 'OFF' position during landing, resulting in a loss of engine power and subsequent collision with a fence during landing. Contributing to the accident was a modified before landing checklist which omitted the fuel pump switch position.\r 1
The pilot’s failure to maintain clearance from terrain while maneuvering at a low altitude. 1
The pilot's excessive brake application during the landing roll to avoid an animal on the runway, which resulted in a ground loop. \r 1
A total loss of engine power due to a fuel leak that could not be identified since the wreckage was not recovered. 1
The pilot’s failure to maintain directional control while landing during variable wind conditions.\r 1
The pilot's failure to extend the landing gear during a precautionary landing after an electrical failure. 1
The pilot's failure to maintain terrain clearance during the departure, which resulted in a collision with terrain.. \r 1
The loss of engine power due to fuel exhaustion and the pilot’s improper fuel planning before the flight.\r 1
The pilot's failure to maintain directional control during landing in gusting wind conditions, which resulted in a ground loop. 1
The pilot’s failure to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall..\r 1
The pilot's failure to maintain airplane control during landing in turbulent conditions. \r 1
The pilot's failure to maintain airplane control during takeoff from a soft airstrip that resulted in a collision with objects. \r\n\r\n\r 1
The pilot's failure to maintain airplane control during landing in gusting wind condition which resulted in a collision with terrain.\r 1
The student pilot's failure to maintain directional control of the airplane during a soft-field takeoff and the flight instructor's delayed remedial action. 1
The pilot failed to maintain an adequate airspeed while on final approach and impacted terrain.\r 1
The pilot’s failure to remove an object from the airplane’s exterior, which impacted the propeller blades when he applied full power, causing them to fracture and damage the airplane.\r\n\r 1
The student pilot's improper landing flare and the flight instructor's inadequate supervision, which resulted in a hard landing.\r 1
The pilot's improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and impact with terrain. 1
The pilot's failure to utilze the emergency landing gear extension procedure after a short-circuit within the normal landing gear system, which resulted in a landing gear collapse during landing.\r 1
The pilot's failure to maintain clearance from a power line while maneuvering during an aerial application flight.\r 1
The pilot’s failure to maintain control of the float-equipped airplane after the float became caught on the trailer used for takeoff.\r 1
The pilot's decision to divert to the private airport and his subsequent failure to maintain directional control while landing on a turf runway that contained tall grass. \r 1
The pilot's failure to maintain control of the airplane during the landing roll, which resulted in a landing gear collapse.\r 1
A loss of engine power for undetermined reasons.\r 1
The pilot's failure to maintain directional control during the landing roll on a soft turf runway, which resulted in a nose-over.\r 1
The pilot's failure to maintain directional control during takeoff in gusting wind conditions, which resulted in a runway excursion and collision with trees.\r 1
Aircraft control was not maintained during initial climb with gusting wind that resulted in a collision with power lines and the terrain. 1
The failure of the pilot to adequately maintain a safe distance from the airplane's propeller, which resulted in a serious injury when the propeller struck his hand. 1
The front seat pilot's failure to maintain directional control during the landing roll, and the rear seat pilot's delayed remedial control inputs that subsequently resulted in a ground loop. Contributing to the accident was a lack of communication by both pilot's to establish clearly defined pilot-in-command roles prior to the accident flight. 1
The student pilot/builder’s addition of winglets to the stabilator, which resulted in flutter and overstress failure of the stabilator control horn.\r 1
A dual total loss of engine power as a result of fuel exhaustion. 1
The pilot's failure to maintain directional control during landing in gusting crosswind conditions. 1
A loss of thermal lift during a motor glider flight, which resulted in an off-airport landing. Contributing to the accident was the pilot's delayed attempted engine start. 1
The loss of lift while on final approach which resulted in a hard off-airport landing.\r\n\r 1
The pilot's failure to maintain obstacle clearance while maneuvering at low altitude at night, which resulted in the helicopter striking a tree. 1
The pilot's failure to retract the amphibious airplane's landing gear wheels prior to a water landing, which resulted in a nose over. \r 1
The pilot's failure to maintain an adequate landing flare that resulted in a porpoise and impact with terrain.\r 1
The pilot's inadequate preflight of the fuel quantity which resulted in a loss of engine power due to fuel starvation during cruise flight.\r 1
The pilot's decision to continue flight in instrument meteorological conditions in an airplane not equipped for instrument flight, which forced her to perform a precautionary landing to a muddy field resulting in the airplane nosing over.\r 1
The pilot's failure to attain the proper touchdown point during landing with a tail wind, which resulted in a runway excursion. 1
The pilot's failure to maintain directional control during takeoff in gusting wind conditions, which resulted in a collision with trees and impacted with the ground.\r 1
The pilot's failure to maintain control of the helicopter during lift off. Contributing to the accident was the pilot's lack of recent experience flying a helicopter.\r\n\r 1
The pilot's loss of directional control during landing, which resulted in a runway excursion. \r\n\r 1
An inadequate flare that resulted in a bounced landing and the pilot's subsequent delayed decision to go-around that did not allow for sufficient clearance from trees when the airplane was affected by a gusting wind.\r 1
The airplane builder's improper installation of the lower right wing which resulted in an uncommanded left roll and the subsequent loss of control.\r 1
The pilot's failure to maintain rotor rpm during a precautionary autorotation, which resulted in a hard landing. Contributing to the accident was the airframe vibration for reasons that could not be determined because examination of the helicopter revealed no anomalies.\r 1
The pilot's loss of directional control during takeoff with a crosswind. 1
The pilot's failure to maintain adequate clearance from a ground obstacle during landing. 1
A right main landing gear break malfunction during landing. Contributing to the accident was a worn right main landing gear caliper pin and pressure plate hole.\r 1
The pilot's excessive brake input while he attempted to maintain directional control during landing roll. 1
The pilot's failure to maintain directional control during landing. Contributing was the pilot getting his shoe caught in the rudder pedal. 1
The pilot's failure to maintain clearance from power lines during a go-around. 1
The pilot's loss of control during an aborted landing. 1
The pilot's failure to maintain proper airspeed during final approach to landing, and his subsequent failure to attain sufficient altitude to clear trees during an attempted go-around. \r\n \r\n\r 1
The pilot's loss of directional control during an aborted takeoff with a tailwind, which resulted in a noseover. 1
The pilot's loss of control while landing a tailwheel airplane. 1
the excessive pitch attitude at touchdown.\r 1
The pilot's incorrect right rudder application during a touch-and go-landing, which resulted in a loss of directional control, runway excursion, and a collision with a runway sign.\r 1
The pilot's failure to attain an adequate climb rate during an aborted landing with a left quartering, gusting headwind, which resulted in impact with a tree.\r 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in the left main landing gear tire bursting and the tailwheel assembly failing.\r\n\r\n\r 1
The failure of the tailwheel attachment tube during the takeoff roll, which resulted in a loss of directional control, a runway excursion, and the left main landing gear collapsing.\r 1
The pilot's improper landing flare in gusting crosswind conditions, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in a runway excursion and nose-over.\r 1
The pilot's failure to maintain directional control during an aborted takeoff, which resulted in collision with a barricade.\r 1
The pilot's failure to maintain directional control during the landing roll on a runway with icy patches, which resulted in impact with a snowbank and a subsequent nose-over.\r 1
The student pilot's failure to maintain helicopter control while maneuvering to land, which resulted in impact with an airplane and a hangar.\r 1
The pilot's inadvertent application of the brakes during the landing roll, which resulted in a nose-over.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and nose-over when the right wheel encountered mud.\r 1
The pilot's failure to maintain clearance from fencing around the landing pad during landing, which resulted in the tail rotor contacting the fence. \r 1
The pilot receiving instruction’s loss of directional control on landing with a crosswind, which resulted in a runway excursion and the left main landing gear collapsing.\r 1
The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and subsequent loss of control at low altitude.\r 1
The pilot’s exceedance of the airplane’s structural limitations while conducting previous aerobatic maneuvers, which resulted in an in-flight breakup of the airplane.\r 1
The tail wheel mechanism detachment for reasons that could not be determined due to the lack of available evidence which resulted in the loss of directional control on landing.\r 1
The pilot's improper approach and landing flare, which resulted in a stall and a subsequent hard, bounced landing.\r 1
The pilot’s decision to continue flight under visual flight rules into instrument meteorological conditions, which resulted in the pilot’s spatial disorientation and loss of control. Contributing to the accident was the pilot’s likely self-induced pressure and the pilot’s plan continuation bias, which adversely affected his decision-making, and Island Express Helicopters Inc.’s inadequate review and oversight of its safety management processes. 1
The pilot's failure to maintain a proper descent rate, which resulted in a hard landing, and his subsequent loss of airplane control during an attempted go-around.\r 1
The pilot's failure to maintain directional control while landing in crosswind conditions, which resulted in a ground-loop.\r 1
A total loss of engine power in both engines due to fuel exhaustion, which resulted in a landing short of the runway.\r 1
The pilot's decision to land on the turf runway with insufficient landing performance and his subsequent loss of control during the landing roll.\r\n\r 1
The pilot's failure to apply full carburetor heat while operating in conditions conducive to carburetor icing, which resulted in a total loss of engine power, a forced landing, and impact with a tree.\r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in a runway excursion and impact with sign. \r\n\r\n\r 1
The student pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion and subsequent nose-over. \r 1
The fracture of the right main landing gear torque link bolt on landing, which resulted in the landing gear assembly rotating freely, the subsequent loss of directional control, and the landing gear collapsing.\r 1
The pilot's improper landing flare in crosswind conditions, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in a ground-loop. \r 1
The pilot's improper continuation of a landing in which he landed too far down the runway at too high a speed, which resulted in a loss of directional control and a runway excursion.\r\n\r\n\r\n\r 1
The student pilot's failure to maintain directional control and the flight instructor's inadequate remediation during a short-field takeoff, which resulted in impact with a parked airplane. \r 1
The pilot's delayed response to initiate a go-around during a night visual approach over water after the airplane entered instrument meteorological conditions, which resulted in a loss of forward visibility and subsequent impact with the water.\r\n\r\n\r 1
The pilot’s loss of directional control and the subsequent nose landing gear collapse of for undetermined reasons.\r\n\r 1
The pilot's failure to maintain clearance from snow-covered terrain while maneuvering at low altitude.\r 1
An encounter with severe convective turbulence associated with a strong sheared environment associated with the jet stream.\r 1
The pilot’s failure to maintain control of the airplane following the loss of engine power. The loss of engine power was the result of fuel starvation due to the degraded fuel tank and fuel contamination.\r 1
The pilot receiving instruction’s misunderstanding of the flight instructor’s instruction and the pilot's and the instructor’s insufficient use of rudder while adding power to the operating engine, which resulted in the airplane rolling left and the wing striking the ground. Contributing to the accident was the flight instructor's delayed remedial action.\r 1
The pilot's failure to properly configure the airplane for takeoff, which resulted in premature liftoff, loss of control, and collision with terrain. 1
The pilot's failure to maintain a proper descent rate during landing, which resulted in a hard landing short of the runway.\r 1
The student pilot's loss of directional control during the landing roll, which resulted in a collision with a taxiway sign.\r\n\r\n\r 1
The pilot’s failure to maintain airplane control during landing, which resulted in the right tire contacting the runway first followed by the left wing.\r 1
The pilot's failure to maintain directional control during takeoff from a lake. 1
The student pilot's failure to maintain the runway heading during takeoff, which resulted in impact with a snowbank and a subsequent nose-over. \r 1
The pilot receiving instruction's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and ground-loop, and the flight instructor’s failure to adequately monitor the pilot.\r 1
The pilot's failure to set the friction lock on the throttle before hand propping the engine, which allowed the airplane to move forward and impact a credit card machine. Contributing to the accident was the malfunction of the parking brake for reasons that could not be determined.\r\n\r 1
The failure of the engine's No.3 intake valve resulting is a loss of engine power and a rollover following the autorotation to soft ground.\r 1
The pilot's improper decision to take off with the airplane at a high gross weight from a short, turf runway, which degraded its climb performance and led to a delayed aborted takeoff, a runway excursion, and impact with terrain.\r 1
The pilot’s failure to set the elevator trim properly for takeoff, which resulted in an exceedance of the airplane’s critical angle of attack during climb out, an aerodynamic stall, and the subsequent impact with terrain. \r\n\r 1
The pilot's failure to arrest the descent rate during an aborted simulated engine-out approach, which resulted in impact with vegetation and a subsequent cartwheel. \r 1
The pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation, and the pilot’s inadequate preflight inspection and preflight fuel planning.\r\n\r 1
The pilot's improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion, an emergency off-airport landing, and a nose over. 1
The airplane’s encounter with turbulence during descent, which resulted in a serious injury to a flight attendant. \r\n\r\n\r\n\r 1
The airplane hydroplaning while landing on a wet runway, which degraded its braking capability and resulted in a runway overrun onto grass and mud and the nose landing gear collapsing. Contributing to the accident was the pilot's improper decision to land the airplane until it was near the runway midpoint due to fog over the approach end of the runway.\r 1
The pilot's failure to properly configure the amphibious airplane for a water landing, which resulted in it flipping over.\r 1
The pilot's failure to maintain adequate clearance from terrain during a hover-taxi, which resulted in the helicopter's skid contacting grass and a subsequent dynamic roll-over.\r 1
The pilot's poor preflight planning, during which he failed to verify the proper procedure to activate the runway lights; his inability to locate the airport without lighting; and the airplane’s subsequent low-fuel state as he circled looking for the airport, which necessitated a precautionary off-airport landing, during which the nose landing gear separated. \r\n \r\n\r\n\r 1
The pilot's failure to maintain control of the airplane during an intentional aerodynamic stall, which resulted in a spin and subsequent collision with terrain.\r 1
The pilot’s impairment/incapacitation from carbon monoxide poisoning due to a degraded muffler. Contributing to the accident was the pilot’s failure to properly maintain the airplane.\r 1
The pilot’s failure to maintain clearance from a tree while taxiing. 1
The pilot’s mismanagement of the fuel selector, which resulted in fuel starvation and a total loss of engine power.\r 1
The student pilot's loss of airplane control during a short field takeoff in gusting crosswind conditions, and the designated pilot examiner's delayed remedial action.\r 1
The pilot receiving instruction's failure to maintain airplane control during landing with a crosswind, which resulted in a bounced landing, and the flight instructor's delayed remedial action, which resulted in a loss of control during the go-around. 1
The student pilot's failure to allow adequate separation when passing the parked airplane, which resulted in a ground collision.\r 1
failure of the deicing truck driver to maintain appropriate clearance from the airplane. 1
The pilot's improper decision to attempt an off-airport departure from rough terrain without inspecting the takeoff area, which resulted in a collision with a shallow rut during takeoff and the nose landing gear collapsing. \r 1
The pilot's failure to maintain clearance from a parked airplane during taxi operations at night.\r 1
The student pilot's failure to arrest the airplane’s descent rate, which resulted in a hard landing. \r\n\r\n\r 1
The pilot's failure to maintain clearance from the approach lights during an instrument approach.\r\n\r 1
The inadequate inspection of the fuel selector valve, which was degraded, allowed fuel to leak, and resulted in fuel starvation and a loss of engine power.\r 1
The student pilot's failure to avoid wake turbulence while landing behind a heavy jet airplane, which resulted in a loss of roll control and subsequent hard landing.\r 1
The pilot's improper approach and delayed decision to apply corrective action, which resulted in a runway overrun, impact with a berm, and a subsequent nose-over. \r\n\r\n\r 1
The rear seat pilot and the student pilot's failure to see and avoid trees during initial climb following an aborted landing.\r\n\r\n\r 1
The student pilot's improper landing flare and failure to conduct a go-around, which resulted in a bounced landing and the nosewheel collapsing.\r 1
The student pilot's improper landing flare and subsequent improper recovery from a bounced landing, which resulted in the nosewheel collapsing.\r 1
The pilot's lifting off with the airplane at a high of angle of attack, which resulted in aerodynamic stall. \r\n\r\n\r 1
The pilot's inadvertent activation of the left brake during the landing roll, which resulted in a loss of directional control, a runway excursion, and collision with a ditch. 1
The pilot flying's improper lateral bank control during a go-around in gusting wind conditions, which resulted in the left-wing tip tank striking the runway.\r 1
The pilot's failure to maintain adequate airspeed during the approach, which resulted in a rapid descent rate, hard landing, and nose-over. \r 1
The pilot being struck in the head by the propeller before flight, which resulted in a serious injury.\r 1
The pilot's failure to use carburetor heat in conditions conducive to carburetor icing, which resulted in a partial loss of engine power, a precautionary landing, and impact with snow. \r\n\r\n\r 1
The pilot's failure to maintain glider control and his exceedance of the glider's critical angle of attack while maneuvering in gusting wind conditions, which resulted in an aerodynamic stall.\r 1
The pilot's failure to maintain the proper altitude and airspeed during the approach and his delayed addition of power to go around and the flight instructor’s delayed remedial action, which resulted in a nose-over after landing on the closed snow-covered runway. \r\n\r\n\r 1
The flight instructor's failure to maintain directional control during landing in gusting crosswind conditions, which resulted in a runway excursion and nose-over.\r\n\r 1
The pilot's failure to maintain altitude/clearance during approach, which resulted in the airplane impacting an area of deep snow. A factor associated with the accident was flat light conditions.\r 1
The malfunction of the steerable tailwheel, which resulted in a loss of directional control during the landing roll and subsequent impact with the precision approach path indicator lights system.\r 1
The fatigue failure of the pneumatic line for reasons that could not be determined, which resulted in a loss of engine power and subsequent hard landing.\r 1
The pilots' failure to ensure that the electric fuel pumps were on before takeoff, which resulted in a partial loss of power on both engines during initial climb.\r\n\r 1
The pilot's improper decision to continue an instrument approach to landing following a loss of visual reference with the runway, which resulted in the airplane touching down left of the runway in snow and flipping over.\r 1
The pilot's loss of directional control during takeoff in gusting crosswind conditions, which resulted in a runway excursion and impact with a runway approach light. 1
The trainee pilot's loss of directional control during landing and his subsequent unintentional control interference with the brakes and/or rudder during the trainer pilot's attempted remedial action, which resulted in a runway excursion and collision with a ditch.\r 1
The pilot's improper decision to turn the airplane from the runway onto the taxiway at an excessive speed, which resulted in a loss of directional control, runway excursion, and collision with a taxiway sign.\r 1
The pilot's failure to see and avoid trees while maneuvering at low altitude, which resulted in a loss of airplane control. \r 1
The pilot's failure to reconnoiter the approach area in preparation for an off-airport landing on a sandbar, which necessitated an evasive maneuver to avoid wires and resulted in an unintentional landing in the river short of the sandbar and a subsequent nose-over.\r\n\r 1
The pilot's improper landing flare in gusting wind conditions, which resulted in a bounced landing, loss of directional control, runway excursion, and impact with a tree. 1
The pilot's improper decision to initiate the takeoff roll from a snow-covered taxiway, which resulted in a loss of directional control, runway excursion, and impact with a snow berm.\r 1
The pilot's failure to maintain airplane control while maneuvering at low altitude, which resulted in the collision with terrain.\r 1
The pilot's improper starting procedure, which allowed the airplane to move forward over the wheel chocks and impact him and a hangar when he subsequently hand propped the engine.\r 1
The pilot's failure to maintain directional control during an attempted go-around to avoid birds, which resulted in a runway excursion and subsequent nose-over.\r 1
The student pilot's loss of directional control during landing, which resulted in a runway excursion, collision with a pole, and a subsequent ground loop. \r\n\r\n\r 1
The failure of the nosewheel steerage linkage during takeoff, which resulted in a loss of directional control and impact with an obstacle during an attempted aborted landing.\r 1
The student pilot's failure to maintain a proper airspeed and descent rate while conducting a low pass over a snow-covered runway after encountering a downdraft and the flight instructor's delayed action, which resulted in the wheels contacting the snow and the airplane nosing over. \r 1
The pilot's failure to maintain a proper landing flare, which resulted in a hard, bounced landing, and his subsequent loss of directional control, which resulted in a ground loop.\r 1
The pilot's failure to maintain airplane control during the landing flare in gusting crosswind conditions, which resulted in the left wing striking the runway.\r 1
The flight instructor's inadvertent throttle reduction below idle, which resulted in a total loss of engine power and subsequent impact with terrain following a power-off autorotation. \r 1
The pilot's failure to properly secure the crew hatch door before takeoff, which resulted in the door’s forward hinge assembly tearing from its fuselage mount point.\r 1
The pilot’s loss of directional control on the snow-covered runway, which resulted in a runway excursion.\r 1
The pilot's improper landing flare in gusting crosswind conditions, which resulted in the airplane porpoising and a subsequent a loss of directional control, runway excursion, and nose-over. \r\n\r\n\r 1
The pilot's failure to maintain clearance from a fence during low-altitude maneuvering.\r\n\r\n\r 1
The pilot’s failure to complete a before landing checklist, which resulted in his delayed extension of the landing gear, and his subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. \r 1
The pilot's failure to maintain adequate airspeed during final approach, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall at too low of an altitude to recover.\r 1
The pilot’s inadequate preflight fuel planning, which resulted in a loss of engine power due to fuel exhaustion. \r 1
The inadvertent engine start of the unoccupied airplane, which resulted in it moving forward and impacting a hangar and an electrical box. \r 1
The pilot's failure to maintain airplane control during a go-around. Contributing to the accident was the pilot’s decision to take off after perceiving a rudder issue during taxi operations.\r 1
The pilot's delayed decision to abort the takeoff when the airplane passed the point where he had anticipated the liftoff would occur.\r 1
The student pilot's failure to maintain directional control while landing on the snow/slush-covered portion of the runway and the flight instructor's improper decision to allow the student to make his first solo flight from a snow/slush-covered runway.\r 1
The student pilot's improper pedal and cyclic input while maneuvering, which resulted in a loss of helicopter control. 1
The pilot's failure to remove the right skid trailer tie-down before attempting to take off, which resulted in a dynamic roll-over.\r 1
The pilot's failure to arrest the descent rate while maneuvering at low altitude, which resulted in impact with terrain. \r 1
The flight crew's failure to stop the airplane on the available runway, which was wet and resulted in the airplane impacting a ditch.\r 1
The flight instructor’s and student pilot’s failure to ensure that the landing gear was extended before landing.\r 1
The pilot's failure to maintain directional control during a landing in flat light conditions, which resulted in a ground loop.\r\n\r 1
The pilot's failure to lower the landing gear before landing. Contributing to the accident was the examiner’s failure to check that the landing gear was extended.\r 1
The pilot's loss of directional control during the landing roll on the slush-covered runway.\r 1
The pilot's failure to maintain adequate clearance from snow covered terrain during an en route descent in flat light conditions, which resulted in controlled flight into terrain.\r\n\r 1
The pilot’s improper decision to conduct an autorotation with a tailwind, which resulted in a hard landing and substantial damage.\r 1
The pilot's failure to maintain airplane control during the approach, which resulted in the airplane ballooning and then veering left upon landing and the right wing impacting the runway. 1
The pilot's failure to maintain bank control during landing in gusting wind conditions.\r 1
The flight instructor’s inadequate communication with the pilot under review about his intention to simulate a single-engine failure and his subsequent exceedance of the airplane’s critical angle of attack when the pilot did not respond as expected, which resulted in an aerodynamic stall at low altitude.\r 1
The pilot's improper landing flare and touchdown, which resulted in a bounced landing and loss of directional control and the airplane's subsequent impact with a snowbank and ground loop during an attempted go-around.\r 1
The pilot's failure to lock the tailwheel before landing, which resulted in his loss of directional control during the landing roll, a runway excursion onto soft ground, and a subsequent ground loop.\r\n\r\n\r 1
The pilot's failure to land and stop the airplane within the available runway, which resulted in a runway overrun. Contributing to the outcome was the pilot's inadvertent feathering of both propellers during approach to landing.\r 1
The pilot’s failure to maintain clearance from a power line pole during a low-level aerial application flight, which resulted in impact with the bracket and a subsequent forced landing.\r 1
The pilot's failure to reinstall the oil cap after adding oil, which resulted to oil starvation and a precaautionary landing.\r 1
Failure of the landing gear solenoid, which resulted in failure of the landing gear position switch, and the pilot's subsequent inability to extend the gear using the manual emergency extension system for undetermined reasons. \r 1
The flight crew’s incorrect glidepath and flare to landing, which resulted in a landing area undershoot and the main landing gear’s collision with the runway threshold. \r 1
Impact with water for reasons that could not be determined based on the available information. 1
The pilot's failure to maintain the runway centerline and his subsequent failure to maintain directional control during the landing roll, which resulted in a runway excursion and subsequent nose-over. \r 1
The pilot receiving instruction's overapplication of rudder during the landing roll and his subsequent failure to maintain directional control, which resulted in a ground loop. \r\n\r\n\r 1
The inherent limitations of the see-and-avoid concept, which prevented the two pilots from seeing the other airplane before the collision, and the absence of visual and aural alerts from both airplanes’ traffic display systems, while operating in a geographic area with a high concentration of air tour activity. Contributing to the accident were (1) the Federal Aviation Administration’s provision of new transceivers that lacked alerting capability to Capstone Program operators without adequately mitigating the increased risk associated with the consequent loss of the previously available alerting capability and (2) the absence of a requirement for airborne traffic advisory systems with aural alerting among operators who carry passengers for hire. 1
The pilot's failure to maintain pitch control while attempting to secure the canopy, which opened shortly after takeoff and resulted in the airplane impacting the ground and the main landing gear collapsing. Contributing to the accident was the pilot's failure to complete the predeparture checklist, which led to his failure to properly secure the canopy before takeoff. 1
The student pilot's failure to maintain directional control during landing with a left crosswind, which resulted in a runway excursion and subsequent nose-over. \r 1
The pilot's decision to land on soft, muddy terrain, which resulted in a nose over.\r 1
The pilot's failure to compensate for adverse wind on final approach, which resulted in a loss of tail rotor effectiveness and aircraft control. \r 1
The pilot's failure to maintain directional control during landing with a crosswind, which resulted in impact with a ditch. \r 1
The pilot’s failure to maintain clearance from mountainous terrain during cruise flight in low visibility and mountainous obscuration conditions. \r 1
A loss of control due to an inflight right engine fire due to the loose fuel hose between the engine-driven fuel pump and the flow transducer. 1
The improper securing of the exhaust duct bolts, which resulted in the duct becoming unseated and substantial heat damage to the tail rotor drive shaft. \r 1
The failure of the nose landing gear to extend for reasons that could not be determined based on the available information.\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, the total loss of engine power, and subsequent impact with a car during an emergency landing on a road.\r 1
The noninstrument-rated pilot’s continued visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation and subsequent loss of control. Contributing to the accident was hypoxia due to the high altitude at which the pilot chose to conduct the flight combined with the impairing effects of amphetamine use.\r 1
The pilot's exceedance of the airplane's critical angle of attack while maneuvering during an agricultural application flight, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's failure to maintain control of the airplane following an intermittent loss of engine power during cruise flight that resulted in him impacting trees. The reason for the loss of engine power could not be determined based on the available information. 1
The passenger’s inadvertent brake application during landing, which resulted in a nose-over.\r 1
The airplane’s impact with a deer on the runway during landing.\r 1
The pilot's loss of control during a low-level aerobatic maneuver, which resulted in impact with terrain. Contributing to the accident was the pilot’s impairment due to the effects of alcohol and antidepressant medication.\r 1
The pilot's improper landing flare, which resulted in a hard, bounced landing.\r 1
The pilot's failure to maintain airplane control during landing in gusting crosswind conditions, which resulted in a hard landing and landing gear collapse. \r 1
The pilot’s inadequate compensation for a quartering tailwind during a water landing, which resulted in a loss of control and subsequent nose-over. Contributing to the accident was the company’s inadequate operational control of the flight release process, which resulted in assignment of an inexperienced pilot to a commuter seaplane flight. \r 1
The pilot’s failure to configure the landing gear for a water landing, which resulted in a nose-over. Contributing to the accident was the pilot's distraction due to his talking passengers.\r 1
The pilot's failure to fully advance the power levers during the takeoff and initial climb, which led to his failure to maintain sufficient airspeed and resulted in the exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall. 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and the landing gear collapsing.\r\n\r\n\r 1
The pilot's failure to maintain clearance from rising terrain during agricultural application operations. \r 1
The pilot's loss of control during an attempted go-around in gusting crosswind conditions.\r 1
The flight instructor's improper emergency procedure instruction to the student pilot, which resulted in the student improperly using the throttle to correct the loss of yaw control, which resulted in ground impact and a dynamic rollover. \r 1
The pilot’s failure to maintain directional control while landing in gusting crosswind conditions, which resulted in a runway excursion.\r 1
The pilot's overapplication of the brakes during landing on a soft runway, which resulted in a nose-over.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop and subsequent nose-over.\r 1
The non-certificated pilot's loss of control while maneuvering. Contributing to the accident was his lack of training in the aircraft and his impairment from illicit drugs.\r 1
The pilot’s exceedance of the airplane's critical angle of attack during the initial climb after takeoff, which resulted in an aerodynamic stall and spin.\r 1
The pilot's improper decision to land with a tailwind and his failure to maintain a proper approach, which resulted in a long landing, a runway overrun, and impact with a tree. \r 1
The pilot’s failure to accurately assess the available runway for the takeoff, which resulted in impact with a gravel berm.\r 1
An extreme loss of braking friction due to heavy rain and the water depth on the ungrooved runway, which resulted in viscous hydroplaning. Contributing to the accident was the operator’s inadequate guidance for evaluating runway braking conditions and conducting en route landing distance assessments. Contributing to the continuation of an unstabilized approach were 1) the captain’s plan continuation bias and increased workload due to the weather and performing check airman duties and 2) the first officer’s lack of experience.\r 1
The pilot's failure to maintain aircraft control while maneuvering that resulted in collapse of the canopy and an uncontrolled descent into terrain. 1
The noninstrument-rated pilot's continued visual flight into instrument meteorological conditions, which resulted in an inadvertent descent into the water. Contributing to the accident was the pilot's decision to conduct the flight at a low altitude without sufficient cues to aid in the perception of attitude and altitude. 1
The pilot's improper landing flare with a left crosswind, which resulted in a hard landing, collapsed landing gear, runway excursion, and nose-over. \r 1
The pilot's improper throttle application and subsequent failure to maintain directional control during the takeoff roll in gusting left crosswind conditions, which resulted in a ground loop. \r 1
The pilot's failure to maintain a proper approach path in gusting wind conditions, which resulted in the airplane landing short of the airstrip and bouncing.\r 1
The loss of left engine power due to an incorrectly adjusted fuel servo and the airplane's nose up trim which resulted in the airplane steep climb, loss of airspeed, and aerodynamic stall and subsequent impact with terrain. 1
The pilot's loss of airplane control due to his failure to maintain appropriate control inputs and airspeed after shutting down an engine because of a progressive failure of the pressure relief valve in the fuel pump, which resulted in variable fuel pressure in the engine. Contributing to the loss of control was the pilot's use of multiple impairing medications. 1
The pilot's steep bank turn at low altitude, which resulted in a rapid descent and hard landing.\r\n\r\n\r 1
A partial extension of the landing gear due to the poor condition of the electric landing gear motor, which resulted in a gear collapse upon landing. \r 1
The pilot's improper trim setting and his exceedance of the airplane's critical angle of attack during a go-around, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The flight instructor's improper decision to instruct the student pilot to establish a hover and reposition the helicopter with a tailwind, which resulted in the student pilot's loss of pitch control. \r 1
The pilot's failure to maintain clearance from power lines during low-level maneuvering through a canyon.\r 1
A partial loss of engine power due to a stuck exhaust valve and the flight instructor's exceedance of the airplane's critical angle of attack following the loss of power, which resulted in an aerodynamic stall at low altitude. 1
The pilot's selection of unsuitable terrain for an off-airport precautionary landing, which resulted in impact with a fence and a nose-over.\r 1
The pilot's improper retraction of the flaps during a go-around and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. \r 1
The pilot's failure to maintain the proper airspeed during the initial climb after takeoff, which resulted in an exceedance of the airplane's critical angle of attack and a stall. 1
The student pilot's improper attempted go-around and the flight instructor's delayed remedial action, which resulted in an aerodynamic stall followed by a hard landing, runway excursion, and impact with vegetation.\r\n\r\n\r 1
The lineman's inadvertent introduction of diesel exhaust fluid (DEF) to the fuel truck fuel system icing inhibitor reservoir, which resulted in fuel contamination and a total loss of engine power. Contributing to the accident was the fixed-base operator's failure to ensure that DEF was stored off-airfield in accordance with their own policy. 1
The pilot's failure to maintain directional control during landing, which resulted in a ground loop. \r\n\r\n\r 1
The pilot's failure to maintain directional control during landing and during a subsequent attempted go-around, which resulted in the airplane cartwheeling.\r 1
The non-instrument-rated pilot's decision to fly into instrument meteorological conditions, which resulted in spatial disorientation, a loss of control, and a subsequent impact with terrain. 1
Incapacitation of the pilot due to a birdstrike through the windshield in front of the pilot's position, while on approach to land.\r 1
The pilot's failure to maintain adequate airspeed and climb rate during takeoff in high-density altitude conditions, which resulted in his failure to clear power lines.\r\n\r\n\r 1
The airplane's failure to maintain a climb for reasons that could not be determined based on the available evidence. \r\n\r\n\r\n \r\n\r 1
The airplane’s impact with a deer on the runway during takeoff.\r 1
The student pilot's failure to maintain adequate clearance from a parked fuel truck. Contributing to the accident were the student’s failure to follow company policy and the flight instructor’s delayed remedial action.\r 1
The pilot's encounter with moderate to severe icing conditions during cruise flight, which resulted in structural icing and a subsequent loss of control. Contributing to the accident was the pilot’s decision to continue a flight route through known moderate to severe icing conditions. \r 1
The pilot's failure to maintain adequate clearance from a shipping container while taxiing. \r 1
The pilot's exceedance of the airplane's critical angle of attack while turning at low altitude, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's excessive brake application during the landing roll, which resulted in a noseover.\r 1
The airplane’s collision with deer during the landing and the airport’s failure to provide an adequate barrier to prevent wildlife from entering the runway environment despite previous deer strikes.\r 1
The pilot's improper control inputs on approach, which resulted in a hard landing near the runway edge, a runway excursion, and impact with runway lighting. Contributing to the accident was the flight instructor's delayed remedial action. \r\n\r\n\r 1
The pilot's failure to maintain pitch control during landing in gusting wind conditions, which resulted in a nose-over.\r 1
The student pilot's improper landing flare, which resulted in a porpoised landing. \r 1
The pilot's failure to obtain the proper touchdown point while landing on a wet turf runway, which resulted in a runway overrun.\r 1
The pilot receiving instruction's failure to maintain directional control and his overapplication of right rudder and the flight instructor's delayed remedial action during the landing, which resulted in a ground-loop. \r 1
a loss of hover lift thrust provided by the eight lift motors due to a false on-ground rotor speed reduction command, resulting from excessive vibration. 1
The noncertificated pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall/spin and impact with terrain.\r 1
The balloon’s encounter with rough terrain, which resulted in a bounced landing and a ground crewmember sustaining serious injuries.\r\n\r\n\r 1
The pilot's failure to maintain directional control during the landing on a road in crosswind conditions, which resulted in the airplane exiting the road and subsequently nosing over.\r 1
The pilot's improper landing flare, which resulted in a long landing and subsequent loss of directional control, and his subsequent failure to attain sufficient altitude to clear trees during an attempted go-around. 1
The pilot's failure to maintain directional control during the landing roll on a wet runway, which resulted in a runway overrun and collision with a pole.\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and a total loss of engine power, and his improper landing flare during a forced autorotation, which resulted in a hard landing. Contributing to the accident were the inoperative fuel gauge, which was not accurately calibrated, and the pilot’s reliance on the gauge.\r\n\r\n\r 1
The student pilot’s exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall.\r 1
The flight instructor's delayed decision to abort the takeoff from a wet, grass runway with insufficient runway remaining, which resulted in a runway overrun and the airplane going down an embankment.\r\n\r\n\r 1
The pilot's failure to maintain altitude due to distraction by ground equipment in the airplane’s path, which resulted in his failure to maintain clearance from crops during an agricultural application flight and resulted in a loss of airplane control. \r 1
The flight instructor's failure to maintain pitch control and his improper landing flare, which resulted in a hard landing.\r 1
The student pilot's failure to maintain the runway heading and to relinquish the flight controls to the flight instructor when told to do so while landing in gusting, crosswind conditions, which resulted in a runway excursion and impact with runway lighting.\r\n\r\n\r 1
The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion and collision with a tree. \r 1
The pilot's failure to maintain directional control during landing with a crosswind, which resulted in a wing strike.\r\n\r\n\r 1
A total loss of engine power due to a main bearing shift and the pilot’s subsequent failure to maintain a proper glide path to the selected forced landing site. Contributing to the accident was the pilot’s decision to operate the airplane with known mechanical deficiencies.\r 1
The pilot/builder's improper installation of the left wing during the build process, which resulted in the wing failing during takeoff. \r 1
The student pilot's excessive rudder application during takeoff and the flight instructor's delayed remedial action, which resulted in a loss of directional control, a runway excursion, and subsequent substantial damage.\r\n\r\n\r 1
The pilot's improper landing flare and his delayed decision to go-around, which resulted in impact with rocks on a shoreline.\r 1
The pilot's improper trim configuration during the takeoff roll, which resulted in the airplane becoming prematurely airborne, and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. \r\n\r\n\r 1
The pilot's loss of airplane control just before touchdown in gusting wind conditions, which resulted in ground loop after touchdown.\r 1
The pilot's failure to maintain adequate main rotor rpm while descending with a tailwind during an aerial application maneuver, which resulted in an uncontrolled descent into terrain.\r 1
The pilot's failure to maintain directional control during landing with gusting crosswind conditions, which resulted in a runway excursion and subsequent substantial damage.\r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack during an aborted landing, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's unintentional engagement of the brakes before landing, which resulted in a nose-over.\r 1
The pilot rated passenger's failure to maintain directional control during landing. Contributing to the accident was the improperly maintained main landing gear brake pads. 1
The pilot's loss of control due to spatial disorientation. \r 1
The student pilot's failure to maintain yaw control and the engine's rpm during transition to a hover, which resulted in hard landing. 1
The pilot's loss of airplane control during approach for undetermined reasons. 1
The pilot's failure to maintain the proper airspeed and his exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's failure to maintain the proper airspeed during approach, which resulted in an aerodynamic stall. \r\n\r\n\r 1
The student pilot's improper landing flare in crosswind conditions, which resulted in a bounced landing, and his subsequent loss of airplane control after overcorrecting with rudder. Contributing to the accident was the flight instructor's delayed remedial action, which resulted in a nose-over. 1
an encounter with convectively induced turbulence while penetrating cumulus clouds during descent.\r 1
A total loss of engine power due to fuel exhaustion. \r 1
The pilot’s failure to maintain clearance from power lines during intentional low-level maneuvering. \r 1
The pilot's inadvertent left heel brake application during the landing roll, which resulted in a noseover. \r 1
The pilot's failure to maintain directional control during the takeoff, which resulted in impact with vegetation.\r 1
The pilot's inability to maintain directional control during landing for reasons that could not be determined because postaccident examination of the airplane brake assemblies revealed no anomalies that would have caused the right brake to lock, which resulted in a runway excursion.\r\n\r 1
The pilot's failure to maintain directional control during takeoff in gusting wind conditions, which resulted in a runway excursion and impact with a ditch. 1
The pilot's failure to retract the amphibious float's landing gear wheels before landing on the water. Contributing to the accident was the pilot's failure to use the after takeoff and before landing checklists. \r 1
The pilot's loss of control due to spatial disorientation in dark night conditions. Contributing to the accident was his inadequate weather planning, lack of experience flying at night and the deteriorating weather conditions. 1
The pilot's failure to maintain directional control, which resulted in a runway excursion during the aborted landing and subsequent impact with vegetation and a nose-over. \r 1
The pilot's failure to extend the landing gear before landing. Contributing to the accident was the pilot's failure to complete the before landing checklist. \r 1
The failure of each pilot to maintain separation from the other airplane during intentional maneuvers within close proximity of each other. \r 1
The pilot's intentional flight into water as an act of suicide.\r 1
The pilot's failure to replace the fuel cap after fueling, which resulted in a loss of engine power due to fuel exhaustion and a subsequent forced landing to a field and subsequent collision with a fence. \r 1
A total loss of engine power due to oil starvation as the result of the oil pressure switch failure due to a manufacturing defect. \r 1
The pilot's failure to maintain control after the partial loss of engine power. Contributing to the accident was a contamination of the fuel system, which likely seized the electric fuel pump and restricted fuel flow to the engine. 1
The pilot's inadequate approach, delayed decision to abort the landing, and failure to properly configure the flap setting for the initial climb during the attempted aborted landing, which resulted in impact with trees. 1
The pilot's improper preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent forced, hard landing in a field.\r\n\r\n\r 1
The pilot's failure to maintain helicopter control during a descent, which resulted in a collision with terrain. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop. \r 1
The pilot's failure to maintain the runway centerline during landing, which resulted in the airplane landing with the left wheel off the runway, an impact with trees, and a nose-over.\r\n\r\n\r 1
The pilot's improper landing flare and failure to maintain pitch control with a crosswind, which resulted in a hard landing and a tail strike.\r 1
The pilot's failure to maintain directional control during taxi operations, which resulted in a collision with a fuel pump enclosure.\r\n\r\n\r 1
The pilot's improper brake application during the landing roll, which resulted in a nose-over. Contributing to the accident was the pilot's lack of recent experience using heel brakes. 1
A total loss of engine power due to oil starvation as a result of the failure of a gasket on the oil filter adapter and the pilot’s inability to clear power lines during the emergency landing. \r 1
The pilot's improper approach, which resulted in the airplane touching down with insufficient runway remaining to stop on the runway, a runway overrun, and subsequent collision with bushes and terrain.\r 1
The pilot's failure to maintain lateral control in flight and his subsequent loss of directional control during landing with a crosswind, which resulted in a runway excursion and impact with terrain. 1
The pilot's failure to maintain aircraft control during the airplane's second test flight, which resulted in a collision with terrain. Contributing to the accident was the pilot allowing external pressures to guide his decision to fly the airplane when he possessed little total flight experience, no recent flight experience, and no experience in the accident airplane or similar airplane. 1
An inflight loss of control on landing approach due to encountering a down-draft, and the pilot's failure to take timely action to abandon the approach and perform a go-around. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in impact with a windsock pole. \r 1
The pilot’s failure to maintain directional control during the landing roll.\r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack during takeoff as he attempted to avoid power lines, which resulted in an aerodynamic stall. \r 1
Improper maintenance of the windshield, which resulted in delamination and in-flight depressurization.\r\n\r 1
An in-flight collision with a bird during the approach, which resulted in damage to the vertical stabilizer.\r\n\r\n\r 1
The pilot’s and flight instructor's failure to verify that the landing gear were extended, which resulted in a gear-up landing. Contributing to the accident was the flight instructor’s inadvertent pulling of the landing gear motor circuit, which prevented the landing gear from extending.\r\n\r\n\r 1
The pilot's failure to use carburetor heat while operating at idle power in atmospheric conditions conducive to the formation of carburetor ice, which resulted in a partial loss of engine power during takeoff.\r 1
The loss of engine power after the No. 1 connecting rod end separated as a result of oil starvation, which led to the forced landing and nose-over.\r 1
The student pilot's failure to maintain the runway heading and the flight instructor's delayed remedial action during landing, which resulted in the instructor landing the airplane in grass left of the runway and a subsequent nose-over.\r 1
The pilot's distraction due to a spray handle opening and his improper pitch trim setting during final approach, which resulted in an excessive pitchdown when he took his hand off the controls to close the handle.\r\n\r\n\r 1
a collision with a bird. 1
The student pilot’s loss of airplane control, the flight instructor's delayed remedial action, and the student's delay in relinquishing the flight controls, which resulted in the airplane striking a runway sign during a go-around. \r\n\r 1
The ground crew’s attachment of the load fill hose to the helicopter without telling the pilot, which resulted in a loss of helicopter control during takeoff. \r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and the nose landing gear collapsing.\r\n\r\n\r 1
The pilot's failure to maintain directional control of the airplane during landing, which resulted in a collision with a fence and impact with terrain during the attempted aborted landing.\r 1
The pilot's failure to remain clear of a light pole while taxiing.\r 1
The noninstrument-rated pilot's continued visual flight rules flight into an area of forecast instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of control.\r 1
The pilot's improper landing flare, which resulted in a bounced landing and loss of directional control and the airplane’s subsequent impact with a snowbank and nose-over during an attempted go-around. \r 1
The pilot's failure to maintain directional control during landing in gusting crosswind conditions, which resulted in a runway excursion and the landing gear collapsing. \r 1
The student pilot's improper landing flare, which resulted in a hard landing, and his subsequent failure to maintain directional control in gusting crosswind conditions that exceeded the airplane’s demonstrated crosswind for landing, which resulted in a runway excursion and nose-over. \r 1
The gunner’s improper net gun firing, which resulted in a net weight impacting the rotor blades.\r\n\r\n\r 1
The pilot's improper decision to land with a gusting left quartering tailwind and his subsequent attempt to reposition the helicopter and take off, which resulted in a dynamic rollover. \r 1
The pilot's failure to maintain directional control during the landing roll and his exceedance of the airplane's critical angle of attack when it inadvertently became airborne, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The non-certificated pilot's failure to maintain an appropriate glidepath while landing toward the sun, which resulted in impact with vegetation and a subsequent loss of control.\r 1
The pilot's failure to maintain clearance from a fence post during taxi to parking.\r 1
Installation of an incorrect engine oil drain valve, which resulted in damage to the valve during landing gear retraction and subsequent engine failure due to oil starvation. Contributing to the accident was the failure of maintenance personnel to comply with the Airworthiness Directive regarding the engine oil drain valve.\r 1
Contamination of and an inadequate bond between the two layers of fabric comprising the helicopter engine's air induction inlet duct, which resulted a partial collapse of the duct, obstruction of the airflow into the engine, and a total loss of engine power. 1
The student pilot's failure to maintain adequate clearance from the stopped airplane while attempting to taxi around it.\r\n\r\n\r 1
The airplane's encounter with a snow-covered pothole during taxi.\r 1
The pilot's improper preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.\r\n\r\n\r 1
The mechanic's failure to notice that the left front seat left front roller housing disengaged from the seat rail during recent maintenance, and the pilot's failure to detect the disengaged roller housing during the preflight inspection, which resulted in the seat sliding backward during takeoff and a subsequent loss of airplane directional control.\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power. \r 1
The pilot's distraction while looking for other aircraft in the traffic pattern, which resulted in his failure to follow a prelanding checklist and to extend the landing gear before landing. Contributing to the accident was the improperly rigged landing gear warning switch, which prevented an audible warning sound.\r\n\r\n\r 1
Failure of the pilot's seat back due to a sheared bolt during the landing roll, which resulted in a loss of directional control and runway excursion.\r 1
The pilot's loss of control during cruise flight as a result of spatial disorientation while operating the helicopter in close proximity to terrain in marginal meteorological conditions.\r 1
The pilot's failure to maintain directional control during landing in variable wind conditions, which resulted in the right wing impacting muddy terrain.\r 1
The pilot's receiving instruction’s failure to maintain directional control during the landing roll, which resulted in impact with trees and a house.\r 1
The student pilot's failure to maintain directional control during landing with a left quartering tailwind, which resulted in a runway excursion, impact with a snowbank, and a nose-over.\r\n\r 1
The loss of engine power due to a connecting rod failure for reasons that could not be determined due to secondary mechanical damage, which resulted in a subsequent forced landing.\r\n\r 1
A landing gear collapse due to the separation of the actuator pinion bearing support from the actuator, which resulted in the failure of the actuator shaft. \r\n \r 1
Fuel starvation to the left engine and the resulting loss of engine power to that engine, and a loss of airplane control due to the pilot's failure to maintain the minimum controllable airspeed. 1
The student pilot's failure to maintain directional control during landing, which resulted in a runway excursion and collision with a drainage culvert. \r 1
The pilot's failure to extend the landing gear, which resulted in a gear-up landing.\r 1
The loss of engine power for reasons that could not be determined because postaccident engine examination and testing revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation. 1
The helicopter’s collision with a bird during cruise flight. \r 1
The pilot's failure to conduct the engine starting procedures in accordance with the Pilot’s Operating Handbook, which resulted in an engine fire.\r\n\r\n\r 1
The failure of the T-28 pilot to see and avoid the Cessna while landing with reduced visibility due to sun glare, which resulted in a collision on the runway. Contributing to the accident was his failure to use the airport's common traffic advisory frequency during the approach and landing.\r 1
A partial loss of engine power for reasons that could not be determined, and the flight instructor's exceedance of the airplane's critical angle of attack while maneuvering for a forced landing, which resulted in an aerodynamic stall and subsequent loss of control. 1
The pilot's loss of airplane control due to spatial disorientation while flying in instrument meteorological conditions. Contributing to the accident was the failure of the vacuum pump and its associated instruments.\r 1
The pilot's failure to keep the airplane on the taxiway while taxiing at night. Contributing to the accident was a miscommunication between the flight crewmembers about the position of the airplane.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a ground loop, and the flight instructor's delayed remedial action.\r\n\r\n\r 1
The pilot's failure to maintain directional control during the landing roll in gusting wind conditions.\r 1
The student pilot's failure to maintain directional control during the aborted landing, which resulted in a collision with a snow berm and a subsequent nose-over. \r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and a total loss of engine power. \r 1
A loss of pitch control for an undetermined reason, which resulted in a collision with terrain during an emergency landing. \r\n\r 1
A loss of airspeed indication due to icing of the airplane's pitot probe, and the pilot's loss of control while maneuvering.\r\n\r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a propeller strike and subsequent nose-over.\r\n\r\n\r 1
The airplane’s unairworthy thrust reverser (T/R) system due to inadequate maintenance that resulted in an asymmetric T/R deployment during an approach to the airport and the subsequent loss of airplane control.\r 1
The failure of the V-belts due to improper maintenance, which resulted in the loss of power to the helicopter's rotor system and subsequent forced landing on rough terrain. \r\n \r 1
The pilot's failure to maintain directional control and runway heading during landing, which resulted in a runway excursion and the nose landing gear collapsing.\r\n\r\n\r 1
failure of the tug driver to give way to the taxiing airplane. 1
The pilot’s continued visual flight rules flight into instrument meteorological conditions, resulting in controlled flight into trees and terrain.\r 1
The student pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion and impact with a runway marker.\r\n\r 1
A loss of control and impact with terrain while maneuvering.\r 1
The pilot's inadequate preflight fuel planning and fuel management, which resulted in a loss of engine power due to fuel exhaustion. Also causal was the pilot's failure to follow the one-engine inoperative checklist and maintain the airplane's minimum controllable airspeed by properly configuring the airplane, which resulted in a loss of airplane controllability. 1
The student pilot's failure to maintain clearance from a fence post during taxi operations.\r 1
The pilot's decision to attempt a takeoff in rough sea conditions, resulting in damage to the floats and the sinking of the seaplane.\r 1
The student pilot's failure to maintain proper airspeed, which resulted in the exceedance of the airplane's critical angle of attack at a low altitude, in the airport traffic pattern, following a total loss of engine power due to fuel exhaustion. Contributing to the accident was the student pilot's decision to attempt the night cross-country flight, his lack of overall and specific operational experience, and his likely impairment from use of methamphetamine and cocaine. \r\n\r 1
The pilot's failure to maintain airplane control during landing with a crosswind and the use of excessive braking application, which resulted in a nose over. 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and an attempted aborted landing and impact with bushes and terrain. \r 1
The pilot's exceedance of the airplane's critical angle of attack during the simulated engine failure on initial climb after takeoff, which resulted in an aerodynamic stall and subsequent loss of control at too low of an altitude to recover.\r 1
The pilot's improper landing flare during a turning, full-down autorotation, which resulted in a lower-than-normal rotor rpm, a faster-than-normal ground run speed, and the subsequent loss of directional control, a runway excursion, and a roll-over. Contributing to the accident was the flight instructor's delayed remedial action. 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with a ditch.\r 1
A partial loss of engine power on both engines due to detonation for undetermined reasons.\r\n\r 1
The stuck right brake at landing which resulted in a loss of control. 1
The pilot receiving instruction's failure to extend the landing gear. Contributing to the accident were the pilot receiving instruction's failure to complete the landing checklist and the flight instructor's inadequate monitoring of the pilot. \r 1
The pilot's failure to maintain directional control during landing in gusting wind conditions, which resulted in a runway excursion and collision with a culvert. \r 1
The pilot's overapplication of the brakes during landing on a grass runway, which resulted in a nose-over.\r 1
The pilot's improper decision to launch the balloon in known high wind conditions, and his failure to fully vent the balloon upon landing, which resulted in the balloon landing hard several times, tipping over, being pushed along uneven ground, and a serious passenger injury.\r 1
The pilot’s inadequate preflight inspection, during which he failed to detect the water contamination in the left fuel, which resulted in a partial loss of power in the left engine. Contributing to the accident was the total loss of power in the right engine for undetermined reasons.\r 1
A partial loss of engine power due to partial interruption of the fuel supply for undetermined reasons.\r 1
The pilot receiving instruction's failure to maintain directional control during landing, which resulted in an attempted go-around and collision with a trench, and the flight instructor's delayed remedial action during the landing. \r 1
The pilot's failure to maintain clearance from the power line during a low altitude aerial application maneuver.\r 1
The pilot's failure to maintain a proper approach to landing on a ridge and his failure to maintain clearance from snow-covered terrain, which resulted in a tail rotor strike.\r 1
An undetermined event, which resulted in substantial damage to the airplane for reasons that could not be determined based on the available evidence.\r 1
The pilots' inadvertent exceedance of the airplane's critical angle of attack following an inflight collision with a bird. \r 1
The helicopter’s encounter with a strong downdraft or outflow boundary while operating at a higher than recommended airspeed in turbulence which resulted in a low-G condition, excessive main rotor flapping, and an in-flight breakup when the main rotor contacted the cabin area. \r 1
The pilot's failure to verify that the rear cargo portion of the right cabin door was adequately secured before flight, which resulted in both portions of the door opening in flight and substantial damage to the fuselage.\r\n\r\n\r 1
The pilot's failure to maintain the proper airspeed during the approach, which resulted in a hard landing. \r 1
The pilot's failure to maintain adequate clearance from ground equipment, which resulted in a tail rotor blade impact.\r\n\r\n\r 1
The student pilot’s failure to maintain directional control during landing, which resulted in a runway excursion.\r 1
The flight instructor's failure to verify the fuel level, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent forced landing and collision with a power line pole. Contributing to the accident was the student pilot's inadequate preflight fuel planning.\r\n\r\n\r 1
The exceedance of the airplane's critical angle of attack during a steep climb after takeoff, which resulted in an aerodynamic stall and spin into terrain.\r 1
The pilot's in-flight collision with an unmarked wire during an aerial application flight; the wire lacked contrast with the surrounding environment.\r 1
The pilot's improper rudder inputs and failure to maintain directional control during landing with a crosswind, which resulted in a runway excursion and impact with a runway sign.\r\n\r\n\r 1
The pilot's failure to maintain directional control during touchdown, which resulted in runway excursion onto snow.\r 1
The flight instructor’s failure to maintain adequate airspeed during the initial climb after takeoff, which resulted in an exceedance of the airplane's critical angle of attack, an aerodynamic stall, and loss of control. \r 1
The pilot's failure to maintain pitch control during the landing roll, which resulted in a nose-over. \r 1
The pilot/owner's improper decision to make a right turn instead of terminating the approach to a hover and his subsequent loss of helicopter control while attempting to land on sloping terrain, which resulted in a roll-over.\r 1
The pilot’s failure to maintain directional control of the airplane during the landing roll, which resulted in a ground loop and impact with terrain.\r 1
The student pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and nose-over.\r 1
The pilot's failure to maintain directional control during the landing roll in gusting crosswind conditions, which resulted in a runway excursion and nose-over.\r\n\r\n\r 1
The pilot's failure to maintain helicopter control while it was being reloaded with the rotors turning in gusting wind conditions, which resulted in a rotor strike with ground equipment.\r 1
The other pilot's failure to maintain clearance from a stopped airplane while taxiing.\r 1
The noninstrument-rated pilot’s loss of control while flying in dark night instrument meteorological weather conditions with convective activity, which resulted in the airplane exceeding its structural limitations and experiencing an in-flight breakup. Contributing to the accident was the pilot’s lack of preflight planning and impairment from drugs.\r 1
An unidentified electrical system malfunction that led to the pilots losing awareness of the airplane's performance in instrument meteorological conditions and resulted in a loss of control of the airplane.\r 1
The pilot's failure to maintain airplane control during the landing roll on a wet airstrip. 1
The pilot's improper decision to execute a low altitude turn that resulted in a strong tailwind and to reduce the airspeed to 0 knots and the flight instructor's diverted attention and inadequate monitoring, which resulted in the helicopter settling with power.\r 1
The pilot's failure to maintain directional control during an attempted go-around, which resulted in impact with a snowbank.\r 1
The pilot's decision to initiate a flight into low instrument flight rules conditions, which resulted in six missed approaches at two airports and a total loss of engine power due to fuel exhaustion. Contributing to the accident was the external pressure the pilot felt to complete the accident flight despite the poor weather conditions.\r 1
The pilot's loss of directional control and subsequent improper brake application during the landing roll, which resulted in a nose-over. \r 1
The pilot's improper decision to depart from a slush-covered runway, which resulted in a loss of directional control, a runway excursion, and a subsequent nose-over.\r\n\r\n\r 1
The pilot's decision to continue a visual flight rules flight into an area of mountainous terrain and instrument meteorological conditions, which resulted in spatial disorientation and controlled flight into terrain. Contributing to the accident was the pilot’s lack of instrument proficiency. \r 1
The pilot's failure to maintain adequate airspeed and his subsequent decision to initiate a turn, which resulted in the powered parachute’s descent and impact with a fence.\r\n\r\n\r 1
A partial loss of engine power for reasons that could not be determined based on the available evidence.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop. \r\n\r\n\r 1
The pilot's failure to maintain altitude during an agricultural application flight. \r 1
The pilot's failure to maintain lateral control during landing and his exceedance of the airplane’s critical angle of attack during the subsequent aborted landing, which resulted in an aerodynamic stall.\r 1
The pilot’s failure to maintain aircraft control during an aggressive maneuver that resulted in a nose down collision with terrain.\r 1
The pilot’s use of an unapproved elevator control lock device, and his failure to remove that device and correctly position the elevator before flight, which resulted in a loss of control during takeoff. Contributing to the accident was his failure to perform a preflight inspection and control check, likely in part because of distractions before boarding and his late departure time.\r 1
A partial loss of engine power due to a restriction in fuel flow for undetermined reasons.\r 1
The airplane’s collision with a bird during the initial climb, which resulted in the engine cowling separating and impacting the empennage.\r 1
The pilot's delayed decision to abort the takeoff, which resulted in a runway overrun, impact with a fence, and a nose-over.\r 1
The pilot's failure to maintain directional control during a crosswind landing. Contributing to the accident was the pilot’s decision to land in crosswind conditions given his lack of recent experience in those conditions. \r 1
The pilot's failure to properly tighten his seat belt, which allowed him to slide forward in his seat and resulted in his inadvertent application of excessive brake application during the landing roll and a subsequent noseover. \r 1
The pilot's improper rudder application during landing on a dirt airstrip, which resulted in a loss of directional control, runway excursion, and subsequent nose-over\r 1
The student pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and noseover.\r\n\r\n\r 1
The student pilot's failure to go-around after a hard, bounced landing and the flight instructor's delayed remedial action, which resulted in a collision with trees at the departure end of the runway. 1
The pilot's improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent emergency landing and collision with a tree.\r\n\r\n\r 1
The airplane’s collision with a bird during short final.\r\n\r\n\r 1
The failure of both pilots to remain clear of the other while flying in formation.\r 1
The partial loss of engine power due to a stuck exhaust valve.\r 1
The pilot's failure to maintain directional control during landing with a left quartering crosswind, which resulted in a runway excursion and impact with runway lighting. 1
The pilot’s decision to depart in dark instrument meteorological conditions, which resulted in spatial disorientation and subsequent loss of airplane control. Contributing to the accident was the pilot’s and pilot-rated passenger’s self-induced pressure to complete the flight and the pilot’s anti-authority attitude.\r 1
The pilot's failure to maintain clearance from a telephone pole during an agricultural application flight. \r 1
The improper fuel servicing of the airplane, which resulted in water contamination of the airplane's fuel supply and a subsequent loss of engine power.\r\n\r\n\r\n\r 1
The pilot's failure to ensure adequate fuel was on board before departing and his in-flight fuel management, which resulted in a total loss of engine power due to fuel exhaustion.\r\n \r 1
The pilot's failure to maintain clearance from wires during low-altitude maneuvering.\r 1
The pilot’s failure to maintain helicopter control and a loss of tail rotor effectiveness while hover-taxiing and turning toward a taxiway in gusting crosswind conditions, which resulted in a dynamic rollover. \r\n\r\n\r 1
The pilot's loss of directional control during landing with a quartering tailwind, which resulted in a runway excursion and subsequent substantial damage.\r 1
The pilot's inadequate preflight inspection, which failed to detect and remove all water from fuel, and maintenance personnel’s unapproved repair of the right wing fuel cap, which resulted in fuel contamination and a subsequent partial loss of engine power during takeoff. \r 1
A loss of directional control on landing for undetermined reasons.\r 1
The pilot's failure to properly secure the glider’s canopy before flight, which resulted in it opening in flight and the pilot's inability to maintain an appropriate final approach path and altitude, which resulted in impact with a shipping container. \r\n\r 1
The pilot's failure to maintain the runway heading during an aborted takeoff, which resulted in a runway excursion and collision with a sign and terrain. Contributing to the need to abort the takeoff was the pilot's improper decision to take off with the airplane over its maximum gross takeoff weight.\r\n\r\n\r 1
The flight instructor's failure to maintain clearance from the other airplane while taxiing. \r 1
The pilot's failure to maintain clearance from wires during an agricultural application flight. \r 1
The pilot's improper decision to operate the airplane in exceedance of the airplane manufacturer’s operating limitations, which led to an aerodynamic stall. Contributing to the accident was the pilot's improper decision to continue attempting the takeoff after two failed attempts.\r 1
Failure of the left main landing gear to fully extend due to a lack of hydraulic fluid and during emergency extension procedures, which resulted in the collapse of the landing gear during landing and the subsequent runway excursion and collision with a sign.\r\n\r 1
The failure of the lower actuator bearing support bracket, which resulted in the misalignment of the clutch actuator, the loss of belt tension on the main rotor drive system, and the subsequent forced landing on sloped terrain.\r 1
The pilot's failure to maintain lateral control of the glider during landing in gusting wind conditions, which resulted in the left wing striking the ground and a subsequent ground loop. \r\n\r\n\r 1
The failure of the left main landing gear upper side brace assembly during landing due to reverse bending fatigue as a result of the incomplete penetration of the circumferential weld during initial production of the component.\r\n\r 1
The pilot's failure to maintain directional control during landing and his excessive rudder input, which resulted in a runway excursion and landing gear collapse.\r\n\r\n\r 1
The pilot's improper fuel planning and decision to not divert to a closer airport when the planned flight profile changed, which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot's failure to maintain lateral control and attain sufficient altitude to clear rising terrain during an attempted go-around.\r\n\r\n\r 1
The pilot's loss of directional control during the takeoff roll due to distraction by the passenger window being unsecured, which resulted in a runway excursion and impact with a runway distance marker. Contributing to the accident was pilot’s failure to ensure that the passenger window was secured.\r 1
The pilot's exceedance of the airplane's critical angle of attack during a go-around, which resulted in an aerodynamic stall and impact with terrain.\r 1
The improper maintenance of the airplane’s landing gear system, which resulted in a hydraulic fluid leak and insufficient pressure to extend and lock the landing gear during the accident flight.\r 1
A total loss of engine power during initial climb due to carburetor icing, which resulted in a forced landing and impact with trees and terrain.\r 1
A total loss of engine power during an aerial application flight for undetermined reasons.\r 1
The pilot’s loss of directional control during a go-around and his failure to assess the wind conditions appropriately before a landing attempt.\r 1
The pilot's failure to maintain lateral control during landing in gusting wind conditions, which resulted in the left wing striking the ground.\r\n\r\n\r 1
The pilot’s loss of airplane control and subsequent impact with terrain for reasons that could not be determined based on the available information.\r 1
Water contamination of the fuel system, which resulted in a total loss of engine power. Contributing to the accident was the pilot's inadequate preflight inspection, which failed to remove all the water from the airplane's fuel system.\r 1
The pilot receiving instruction's failure to maintain the runway heading and bank control during landing in crosswind conditions, which resulted in a go-around and subsequent collision with a runway light.\r\n\r\n\r 1
The pilot under instruction's failure to follow the flight instructor’s directions and the flight instructor's delayed remedial action and subsequent exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and loss of airplane control.\r 1
The pilot’s failure to abort the takeoff in a timely manner, which resulted in glider settling into sage brush.\r\n\r\n\r 1
The pilot's failure to maintain directional control during landing, which resulted a ground loop.\r 1
The pilot's inadvertent reduction of power during the initial climb, which resulted in an aerodynamic stall. Contributing to the pilot’s inadvertent reduction of power was his lack of experience with his left hand on the control stick and right hand on the throttle.\r\n\r\n\r 1
The pilots’ loss of control during a low altitude maneuver for undetermined reasons, which resulted in impact with terrain. \r 1
The pilot's failure to maintain a proper glidepath during a night landing, which resulted in impact with a tree.\r 1
The pilot's exceedance of the airplane's critical angle of attack during a low-altitude turn, which resulted in an aerodynamic stall. \r 1
The pilot's improper landing flare, which resulted in a hard landing and subsequent ground loop. \r\n\r\n\r 1
The pilot's delayed decision to abort the landing on a wet grass runway and the flight instructor's delayed remedial action. Contributing to the accident was the wet runway which degraded braking. 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent loss of directional control while attempting a go-around, which resulted in a runway excursion and impact with trees. \r 1
The pilot's improper decision to land on a rough, grass airstrip, which resulted in the nose landing gear collapsing and a subsequent nose-over.\r 1
The pilot's improper cyclic input during liftoff from a landing deck, which resulted in the right skid hooking onto an opening on the landing deck and a subsequent dynamic rollover. 1
A partial loss of power due to the liberation or failure of the No. 2 cylinder's exhaust valve.\r 1
An open circuit in the engine's electrical switch box, which resulted in a partial loss of engine power and subsequent forced landing.\r 1
The pilot's exceedance of the airplane's critical angle of attack while turning at low altitude, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's distraction due to looking at wildlife. \r 1
A fracture of the right outboard landing gear bracket for undetermined reasons. \r 1
The disconnection of the propeller governor control arm from the propeller governor due to a missing attachment bolt, which resulted in a partial loss of engine power during takeoff when the governor control vibrated to a high pitch, low rpm setting.\r\n\r 1
The pilot's failure to extend the landing gear during landing.\r 1
The student pilot's failure to maintain lateral control during a soft-field takeoff, which resulted in the left wing striking the runway and a runway excursion.\r\n\r\n\r 1
The pilot's delayed decision to abort the takeoff from a grass runway, which resulted in a runway overrun and subsequent impact with a pole.\r\n\r\n\r 1
The airplane's floats impact with an ocean wave or swell, which exceeded the design load specifications of the flying wire assemblies and resulted in a partial separation of the float assemblies.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and the right wing striking the ground. \r\n\r\n\r 1
The pilot’s failure to maintain adequate spacing from the lead airplane while landing following revised landing instructions, which necessitated that the pilot conduct an improper landing flare and resulted in a hard landing.\r 1
The pilot's failure to maintain directional control during a touch-and-go landing in gusting crosswind conditions, which resulted in a runway excursion, impact with runway lights, and a nose-over. 1
The pilot's improper decision to continue the landing with the airplane high and fast during the approach, which resulted in a long landing and a subsequent runway overrun and nose-over.\r 1
The pilot's improper landing flare, which resulted in a bounced landing.\r\n\r\n\r 1
The airplane’s impact with a bird during approach.\r\n\r\n\r 1
Failure of the No. 3 exhaust valve and the subsequent loss of engine power due to engine operation with an excessively lean fuel mixture over a period of time.\r 1
The pilot's delayed go-around attempt and the flight instructor's delayed remedial action that resulted in a nose-down impact with terrain during an attempted go-around.\r 1
The pilot's continuation of an unstabilized approach despite recognizing associated cues and the flight crew's decision not to initiate a go-around before touchdown, which resulted in a bounced landing, a loss of airplane control, a landing gear collapse, and a runway excursion. Contributing to the accident was the pilot's failure to deploy the speedbrakes during the initial touchdown, which may have prevented the runway excursion, and the pilot's attempt to go around after deployment of the thrust reversers. 1
The pilot's overapplication of brakes during landing, which resulted in a nose-over. \r 1
The loss of engine power following an increase in oil temperature for undetermined reasons during cruise flight, which resulted in a forced landing on unsuitable terrain.\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion, a total loss of engine power, an off-airport landing to a field, and a subsequent nose-over. \r\n\r\n\r 1
The pilot's failure to maintain clearance from power wires during agricultural application operations. 1
A total loss of engine power due to fuel exhaustion after the pilot inadvertently kicked a fuel line during turbulence, which resulted in a forced landing into trees. \r 1
The pilots’ failure to place the left fuel selector into the proper position, which resulted in a total loss of the left engine’s power due to fuel starvation. Contributing was their failure to properly secure the left engine and their failure to maintain control of the airplane during the attempt to return to the airport.\r 1
The other pilot's failure to see and avoid the airplane established on the taxiway. \r\n\r\n\r 1
The noncertificated pilot's loss of control of the gyrocopter after a total loss of engine power due to seizure of the crankshaft bearings. Contributing to the accident were the insufficient maintenance of the engine and the pilot's lack of gyrocopter flight experience.\r\n\r 1
The pilot's improper preflight performance planning for a high-density altitude takeoff from a short, dirt airstrip, which resulted in impact with terrain.\r\n\r\n\r 1
The pilot's failure to maintain lateral control during an attempted aborted landing, which resulted in impact with trees.\r 1
The pilot's overapplication of brakes during landing on unimproved terrain, which resulted in a nose-over.\r\n\r\n\r 1
The pilot's inability to land on the runway in dark night conditions with reported smoke in the cockpit, which necessitated the deployment of the airplane's parachute system. 1
The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. 1
The improper installation of the engine’s metal intake screen, which allowed the filter element to become displaced and subsequently lodge in the intake, blocking intake air and causing the total loss of engine power, at low altitude and low airspeed resulting in the airplane impacting terrain.\r 1
The pilot's failure to properly secure the seat before takeoff, which resulted in it sliding back during takeoff and rendering him unable to reach the rudder pedals and throttle lever, a subsequent runway excursion, ground loop, and impact with a berm. \r 1
A loss of engine power due to fuel starvation, which resulted from attitude-induced unporting of the fuel.\r 1
The pilot's failure to maintain adequate clearance from a tree while maneuvering at a low altitude.\r 1
A loss of engine power after takeoff for undetermined reasons.\r 1
The pilot’s failure to properly secure the airplane electrical system’s positive/negative leads to the 24v battery, which resulted in a total loss of electrical and engine power in flight.\r 1
The pilot's excessive braking during landing on a dry lakebed, which resulted in a nose-over. \r 1
The student pilot's failure to maintain directional control while attempting to go around, which resulted in a runway excursion and impact with a ditch.\r\n\r\n\r 1
The pilot's inadequate preflight inspection of the floats, which led to his subsequent attempt to depart from a lake with damaged floats and led to a loss of roll control and the right wing impacting the water. \r 1
The pilot’s continued use of battery power during a nonpowered flight in a powered-glider, which depleted the battery to a level that was insufficient to power the starter during the engine restart sequence and resulted in a forced landing to a soft field and a subsequent nose-over. \r\n \r\n\r 1
The failure of the glider tow rope, which lodged in the glider's rudder and resulted in a hard landing. Contributing to the accident was the pilot's failure to properly secure the glider's aft canopy.\r\n\r 1
The pilot’s improper modifications to the airplane’s engine, which resulted in the partial loss of engine power. Contributing to the outcome was the pilot's exceedance of the airplane’s critical angle of attack during an attempted return to the airport following a partial loss of engine power, which resulted in an aerodynamic stall and impact with terrain.\r 1
A hard landing, which resulted the basket tipping over and a passenger sustaining a serious injury.\r 1
The airplane’s impact with a bird during approach. \r 1
The pilot's delay in extending the landing gear and his improper movement of the landing gear lever, which led to a gear-up landing. 1
The pilot's improper decision to fly over a river at a very low altitude, which resulted in a collision with power lines.\r 1
The student pilot's failure to maintain crosswind correction during landing and his subsequent loss of directional control during the landing roll, which resulted in a runway excursion and impact with uneven terrain.\r\n\r\n\r 1
The pilot's failure to maintain clearance from terrain due to his impairment from alcohol consumption. 1
The pilot's failure to maintain a proper approach path and his delayed decision to go around, which resulted in impact with a construction barrier before the runway. Contributing to the accident was the pilot's decision to land on a runway closed for landing.\r\n\r\n\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop. \r\n\r\n\r 1
The pilot's failure to maintain an adequate glidepath during the approach, which resulted in the airplane impacting rocks and dirt at the runway threshold, a separation of the right main landing gear, and a loss of directional control. \r 1
The pilot's failure to maintain a proper approach path in gusting crosswind wind conditions, which resulted in landing short of the runway and impact with a ditch and runway light.\r\n\r\n\r 1
The pilot's failure to maintain a proper descent rate during landing, which resulted in a hard landing and a serious passenger injury.\r\n\r\n\r 1
The engine's low cylinder compression, which resulted in low rotor rpm and a subsequent dynamic rollover following landing on soft terrain.\r 1
The pilot's failure to select a fuel tank with adequate fuel, which resulted in fuel starvation and a total loss of engine power.\r\n\r 1
The pilot's distraction due to the environment, his failure to lower the landing gear, and his subsequent failure to maintain directional control while landing the glider, which resulted in impact with a utility box. \r 1
The pilot's failure to maintain clearance from wires during an agricultural application flight.\r\n\r\n\r 1
The pilot's premature full retraction of the flaps during a go-around and his subsequent improper decision to turn with a minimal climb gradient, which resulted in an off-airport landing and a landing gear collapse.\r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack during initial climb, which resulted in an aerodynamic stall. \r\n\r\n\r 1
The student pilot's improper landing flare with a tailwind, which resulted in a hard, bounced landing.\r 1
The flight instructor's and student pilot's inadequate preflight inspection of the fuel system for water contamination, which resulted in a loss of engine power during takeoff and subsequent forced landing.\r\n\r 1
The pilot’s failure to maintain sufficient airspeed of the glider, which resulted in exceedance of the glider's critical angle of attack and an aerodynamic stall/spin.\r 1
The pilot’s failure to maintain takeoff heading due to sun glare, which resulted in his inability to see an island adjacent to the water lane and subequent impact with the island.\r 1
The pilot’s failure to maintain adequate airspeed on final approach, which resulted in exceedance of the airplane’s critical angle of attack and an aerodynamic stall at an altitude that precluded recovery. \r 1
The student pilot's failure to maintain the runway heading during an attempted aborted landing, which resulted in a runway excursion onto rough terrain. 1
The pilot's failure to land the airplane within the desired touchdown zone, which resulted in a long landing and collision with a fence. 1
The student pilot's improper decision to turn off the runway while the airplane was moving too fast after landing, which resulted in a runway excursion and impact with a taxiway sign.\r\n\r\n\r 1
The pilot’s impairment by medical conditions and/or medications, which resulted in the airplane’s impact with power lines and terrain.\r 1
The pilot's loss of airplane control due to spatial disorientation during the departure climb after entering instrument meteorological conditions.\r 1
The pilot's improper landing flare, which resulted in a hard bounced landing.\r 1
The pilot's improper landing flare, which resulted in a hard, porpoised landing. \r\n\r 1
The pilot's failure to maintain directional control during takeoff in gusting crosswind conditions, which resulted in a runway excursion and the left main landing gear collapsing. \r 1
The engine’s failure to produce full power for reasons that could not be determined.\r\n\r 1
The pilot's abrupt maneuver to try and avoid a deer during landing on a grass strip runway, which resulted in a ground loop. 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. 1
The pilot's decision to conduct low altitude aerobatic maneuvers which resulted in an exceedance of the airplane’s critical angle of attack while maneuvering at a low altitude, which resulted in an aerodynamic stall.\r 1
The noncertificated pilot’s decision to continue to takeoff and climb after encountering an undetermined airplane control issue that he was unable to counteract, which resulted in collision with trees and subsequent impact with terrain. \r 1
The pilot's loss of directional control due to his unintentional use of brakes instead of the rudder during the landing roll, which resulted in a nose-over.\r\n\r\n\r 1
The pilot's improper landing flare in gusting wind conditions, which resulted in a hard landing.\r\n\r\n\r 1
A loss of directional control while landing, which resulted in a water loop.\r 1
The pilot's failure to maintain situational awareness during takeoff from a confined area, which resulted in the helicopter rotors striking tree branches.\r\n\r\n\r 1
The pilot's continued visual flight into instrument meteorological conditions, which resulted in controlled flight into terrain.\r 1
The pilot's insufficient rudder input during takeoff, which resulted in a loss of yaw control and a hard landing.\r\n\r\n\r 1
The pilot's excessive brake application during landing on a short runway due to his lack of familiarity with the toe brakes, which resulted in a nose-over. 1
The pilot's delayed decision to go around, which resulted in a collision with trees and terrain. \r\n\r 1
The noninstrument-rated pilot's decision to continue visual flight rules flight into an area of instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. Contributing was the pilot not obtaining a weather briefing prior to the flight.\r\n\r 1
The pilot's improper fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power. \r\n\r\n\r 1
The pilot's improper landing flare during landing in a gusting, right quartering tailwind, which resulted in the airplane wheel barrowing and a subsequent runway overrun, impact with terrain, and noseover. \r 1
The pilot's failure to properly secure the airplane before hand propping it, which resulted in the unmanned airplane moving and colliding with a fence.\r\n\r\n\r 1
The pilot’s failure to maintain helicopter control during a course reversal, which resulted in impact with terrain.\r 1
A higher than expected and accounted for crosswind which initiated a lateral deviation, and resulted in the aircraft reaching the limits of the geo-fence area triggering a contingency forced landing. 1
The pilot's failure to maintain clearance from trees during takeoff, which resulted in an in-flight collision, a loss of control, and impact with terrain. 1
The pilot's failure to maintain directional control while taking off from a soft, rough field, which resulted in a ground-loop. \r 1
The pilot's improper landing flare and failure to maintain pitch control, which resulted in a porpoised landing.\r 1
The pilot’s aggressive takeoff maneuver, which resulted in an accelerated stall and subsequent loss of control at an altitude that was too low for recovery. Contributing to the accident were (1) the operation of the airplane near its aft center of gravity limit and the pilot’s lack of training and experience with the handling qualities of the airplane in this flight regime; (2) the failure of Oahu Parachute Center and its contract mechanic to maintain the airplane in an airworthy condition and to detect and repair the airplane’s twisted left wing, which reduced the airplane’s stall margin; and (3) the Federal Aviation Administration’s (FAA) insufficient regulatory framework for overseeing parachute jump operations. Contributing to the pilot’s training deficiencies was the FAA’s lack of awareness that the pilot’s flight instructor was providing substandard training. 1
A partial loss of engine power due to the separation of baffling in both mufflers. Contributing to the accident was the pilot's failure to retract the landing gear on the float-equipped airplane before performing a forced landing to the river. \r\n\r\n \r\n\r\n \r\n\r\n \r\n\r 1
The pilot's distraction, which resulted in his failure to maintain adequate altitude and airspeed and a subsequent impact with terrain.\r 1
The pilot's failure to maintain directional control while landing in gusting crosswind conditions, which resulted in a runway excursion and impact with a taxiway sign.\r 1
The pilot’s failure to use carburetor heat on approach in weather conditions conducive to carburetor icing, which resulted in a forced landing to a pond.\r 1
The pilot’s failure to maintain a proper visual lookout during the approach, which resulted in inadequate clearance from a tree.\r 1
The student pilot's maneuver to the left to avoid striking birds during takeoff and his subsequent loss of directional control after aborting the takeoff and landing on soft, muddy grass adjacent to the runway during, which resulted in a nose-over. 1
The pilot's failure to maintain directional control during landing with a crosswind, which resulted in a runway excursion and impact with vegetation.\r\n\r\n\r 1
The flight instructor's intentional overapplication of rudder to avoid a ditch during landing with a tailwind, which resulted in a runway excursion and landing gear collapse. 1
The exceedance of the airplane's critical angle of attack during climb, which resulted in an aerodynamic stall and spin at low altitude. Contributing was the lack of experience both pilots possessed in the accident airplane. \r 1
The pilot's failure to see and avoid a dark-colored utility pole while taxiing for takeoff.\r 1
The copilot’s disabling of the flight controls of an operating helicopter without telling the pilot on the controls, which resulted in a subsequent loss of control and collision with terrain. \r\n\r 1
The pilot's distraction while looking for traffic, which led to his failure to extend the landing gear before landing, and his exceedance of the airplane's critical angle of attack during a subsequent go-around, which resulted in an aerodynamic stall. 1
The pilot's improper landing flare in gusting wind conditions, which resulted in a bounced landing and landing gear collapse. 1
The pilot's exceedance of the airplane's critical angle of attack during the aborted landing, which resulted in an aerodynamic stall.\r\n\r 1
The pilot's failure to maintain directional control during takeoff from a soft, grass airstrip, which resulted in impact with brush.\r 1
The pilot's selection of unsuitable terrain for takeoff, which resulted a nose-over. Contributing to the accident was the pilot's improper in-flight fuel management, which resulted in the precautionary landing on unsuitable terrain. 1
The pilot's failure to see and avoid a windmill tower while maneuvering at low altitude. \r\n\r\n\r 1
The pilot’s failure to maintain directional control during a precautionary landing, which resulted in a ground loop. Contributing to the accident was a partial loss of engine power for reasons that could not be determined.\r 1
The pilot's failure to the maintain the runway heading during landing with a crosswind, which resulted in impact with runway lighting and a subsequent ground loop during the landing roll. \r 1
The pilot's failure to maintain clearance from a wire during an aerial application flight in sun glare conditions.\r 1
The pilot's loss of yaw control and failure to maintain a proper descent rate and his subsequent improper use of the collective instead of the antitorque pedals to correct the yaw, which resulted in a hard landing. \r 1
A loss of control while conducting low-altitude, high-speed maneuvers. \r 1
The pilot's improper preflight fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power. \r\n\r 1
The overstress fracture of the roll pin in the nose landing gear (NLG) spacer assembly which caused interference between the nose wheel actuator rod and the left forward gear door actuating rods preventing the NLG to fully extend into the full down and locked position resulting in a nose gear collapse during landing.\r\n\r 1
The separation of the canopy from the glider during an off-airport landing for reasons that could not be determined. \r 1
The pilot's failure to maintain a proper descent rate during landing, which resulted in impact with terrain. \r 1
The pilot’s attempt to land on water in an airplane that was not equipped with floats. \r\n\r\n\r 1
A total loss of engine power due to failure of a connecting rod bearing. Contributing to the engine failure was the lack of an engine overhaul within the prescribed interval.\r 1
The passing pilot’s failure to maintain clearance from the airplane that he was attempting to pass during taxi operations. Contributing to the accident was the passing pilot's distraction due to looking at his on-board navigation device while attempting to pass the other airplane. \r\n\r 1
The fatigue failure of the right main landing gear upper torque knee.\r 1
The failure of the airplane's structural tubing due to corrosion, which resulted in a tailwheel separation and a subsequent loss of control. Also causal was the mechanic's failure to perform a detailed inspection of the aft fuselage during the most recent annual inspection. \r\n\r 1
The pilot's improper landing flare, which resulted in a hard landing, and his subsequent loss of directional control, which resulted in impact with a creek. \r 1
A partial loss of engine power for reasons that could not be determined, and the pilot's subsequent exceedance of the airplane's critical angle of attack during an attempted return to the runway, which resulted in an aerodynamic stall/spin at an altitude that precluded recovery. \r 1
The pilot's improper decision to take off with the airplane near its maximum allowable gross takeoff weight and his subsequent exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's decision to depart with minimal runway available and his improper soft-field takeoff procedure, which resulted in impact with trees due to a slow airspeed and settling effect during climb out. \r 1
A total loss of engine power as a result of the pilot's inadvertent placement of the fuel selector to the "off" position. 1
The pilot's failure to maintain directional control during takeoff in gusting crosswind conditions, which resulted in a ground loop. \r 1
The student pilot's failure to maintain directional control during landing, which resulted in a runway excursion and subsequent nose-over. \r 1
A partial loss of engine power during takeoff due to the formation of carburetor ice while on the ground, which resulted in an impact with terrain.\r 1
The pilot receiving instruction's improper cyclic control input during landing, which resulted in a dynamic rollover, and the flight instructor's improper decision to practice landings in tall grass in gusting wind conditions.\r\n\r\n\r 1
The pilot's sudden incapacitation from an undiagnosed cardiac arrhythmia while on final approach, which resulted in descent and collision with trees and terrain.\r 1
The pilot's failure to maintain directional control during landing in gusting crosswind conditions, which resulted in a runway excursion, impact with a ditch, and subsequent nose-over. \r 1
The pilot’s failure to maintain clearance from power lines while maneuvering at a low altitude. Contributing to the accident was the pilot’s impairment from consuming alcohol before the flight. \r 1
The pilot receiving instruction's premature pitch control input during takeoff, which resulted in an aborted takeoff and subsequent impact with terrain. Contributing to the accident was the flight instructor's delayed remedial action. \r 1
The pilot's selection of unsuitable terrain for landing, which resulted in a noseover. \r\n\r\n\r 1
The pilot's failure to extend the landing gear before landing. Contributing to the accident was an inoperative landing gear warning horn.\r 1
The pilot's failure to disengage an uncommanded nose-down pitch input. Contributing to the accident was improper maintenance of the pitch trim servo, which would have precluded a physical override of the pitch servo.\r 1
The pilot's loss of yaw control during takeoff with a right quartering headwind in gusting wind conditions, which resulted in a collision with trees. \r 1
The pilot's failure to maintain lateral position in relation to the instrument approach course at night in instrument meteorological conditions, which resulted in collision with a tree. \r 1
Impact with the ocean for reasons that could not be determined because the airplane was not located. 1
The pilot's delayed decision to go around in high-temperature and high-density altitude conditions and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's failure to secure the oil filler cap, which resulted in oil starvation and a precautionary off-airport landing, during which the airplane was substantially damaged.\r 1
The pilot's unstable approach and failure to properly configure the flaps during the attempted go-around, which resulted in an aerodynamic stall and impact with terrain. \r 1
The pilot's failure to maintain directional control during landing with a tailwind, which resulted in a ground loop.\r\n\r\n\r 1
The pilot's improper decision to land on rough, grassy terrain, which resulted in a nose-over.\r 1
The pilot's inadequate clearance from a tree during an attempted off-field landing.\r 1
The student pilot's failure to maintain airplane control during a go around with a tailwind, which resulted in an uncontrolled descent and impact with terrain.\r 1
The student pilot's failure to maintain the runway heading during takeoff with a crosswind, which resulted in impact with a hay bale left of the runway, and his improper decision to perform a soft-field takeoff without adequate practice.\r\n\r\n\r 1
The pilot's failure to maintain airspeed and his exceedance of the airplane's critical angle of attack during a banner drop and pickup, which resulted in an aerodynamic stall and a subsequent loss of control. \r 1
The airplane owner's and mechanic's improper rigging and cable tension of the aileron control system, which resulted in a loss of control during takeoff.\r 1
The failure of the left main landing gear attachment point during the landing roll for reasons that could not be determined because the attachment was not examined, which resulted in a loss of directional control, collision with a drainage culvert, and a subsequent nose-over.\r\n\r\n\r 1
The pilot’s failure to maintain airplane control during landing resulting in an impact with crop and a subsequent ground-loop. Contributing was the wet turf airstrip. \r\n\r 1
The pilot’s failure to maintain directional while landing with a quartering tailwind, which resulted in a ground loop.\r\n\r 1
The pilot's failure to attain a sufficient climb following a short-field takeoff, which resulted in collision with trees. 1
The student pilot's improper landing flare, which resulted in a bounced landing and wing strike. \r\n\r\n\r 1
The pilot’s failure to maintain main rotor rpm after takeoff, which resulted in a collision with terrain.\r 1
The pilot's failure to use carburetor heat while operating at low power settings in conditions conducive to the development of carburetor ice, and the subsequent total loss of engine power due to carburetor icing.\r 1
The pilot's improper verification of the fuel quantity during the preflight inspection, which resulted in fuel exhaustion and a subsequent total loss of engine power.\r 1
The loss of helicopter performance for undetermined reasons. \r\n\r 1
The improper maintenance of the outboard left wing, which allowed electrical arcing and leaking of the fuel sending unit and subsequently resulted in ignition of fuel vapors and an explosion of the outboard left wing. \r\n\r 1
The pilot's failure to see and avoid tall grass along the side of the runway during the takeoff roll, which resulted in his loss of directional control, a runway excursion, and nose-over. \r\n\r\n\r 1
The pilot receiving instruction's failure to extend the landing gear and the flight instructor's failure to verify that the landing gear was extended due to distraction, which resulted in a gear-up landing. \r\n\r\n\r 1
The pilot's premature movement of the landing gear selector to the "up" position during takeoff, which allowed the landing gear to retract before a positive climb rate was established, and the lack of a positive climb rate, which led to the airplane settling back on the runway with the gear retracted.\r 1
The pilot's failure to verify that the main landing gear were extended, which resulted in landing with partially extended landing gear. Contributing to the accident was a tripped landing gear motor circuit breaker.\r\n\r\n\r 1
The pilot's failure to maintain directional control while exiting the runway, which resulted in a runway excursion and collision with taxiway lighting and runway signage.\r\n\r\n\r 1
The pilot's improper landing flare, which resulted in an aerodynamic stall and subsequent hard landing, runway excursion, and collision with a sign. \r 1
The pilot’s decision to continue visual flight rules into instrument meteorological conditions, which resulted in spatial disorientation and a loss of control.\r 1
The pilot's improper soft-field landing technique, which resulted in a nose-over.\r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack during landing, which resulted in an aerodynamic stall and a subsequent hard landing.\r\n\r\n\r 1
The pilot's failure to maintain the proper airspeed and his exceedance of the airplane's critical angle of attack during a low-altitude climbing turn, which resulted in an aerodynamic stall. \r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and right main landing gear collapse.\r 1
The student pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with a vehicle.\r 1
A total loss of engine power due to obstruction of the carburetor air intake by a piece of the air filter gasket that had become detached.\r 1
The pilot's use of excessive brakes during an aborted takeoff, which resulted in a nose-over.\r 1
The pilot's selection of unsuitable terrain for landing, which resulted in a nose-over. 1
The student pilot's improper landing flare and failure to maintain the runway heading, which resulted in the loss of airplane control, and the flight instructor's delayed remedial action during a go-around with a crosswind, which resulted in a bounced landing and subsequent impact with a pole.\r 1
The pilot's spatial disorientation during an instrument approach in dark night instrument meteorological conditions, which resulted in a loss of control and subsequent impact with terrain. 1
A failed electrical relay, which provided an improper indication of a governor and clutch problem, which resulted in the pilot conducting a precautionary landing during which he failed to maintain sufficient main rotor speed. \r 1
The pilot's improper landing flare, which resulted in a hard landing, subsequent loss of directional control, runway excursion, and ground-loop. 1
A partial loss of engine power due to carburetor icing, which resulted from the flight instructor's decision not to use carburetor heat.\r 1
The noncertificated pilot's exceedance of the airplane's critical angle of attack during the initial climb, which resulted in an aerodynamic stall.\r\n\r\n\r 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in the left wing striking bushes. Contributing to the accident was the pilot’s distorted visual perception due to his flying with one seat cushion rather than the two cushions he typically used.\r\n\r\n\r 1
The pilot's geographic disorientation and his exceedance of the airplane's critical angle of attack while maneuvering to avoid mountainous terrain, resulting in an aerodynamic stall. 1
The pilot's decision to maneuver the helicopter at low altitude over a river, which resulted in a wire strike and subsequent collision with terrain.\r 1
The pilot's failure to properly lean the fuel mixture in flight, which resulted in fuel exhaustion, a subsequent total loss of engine power, and a forced landing with the landing gear retracted. 1
The student pilot's improper landing flare and the flight instructor's delayed remedial action, which resulted in a hard landing and the instructor sustaining a serious injury. \r 1
The pilots' failure to maintain clearance from a power line during low level operations. \r 1
The pilot's failure to maintain directional control and his overapplication of brakes during an aborted takeoff, which resulted in a runway excursion and subsequent nose-over.\r 1
The airplane’s impact with a bird.\r\n\r\n\r 1
The pilot's improper landing flare due to reduced visibility from a foggy windshield and his failure to use the airplane’s windshield defrost system, which resulted in a hard landing and subsequent nose landing gear collapse.\r 1
The pilot's improper decision to continue a steep and fast approach to landing, which resulted in a runway overrun and collision with a drainage culvert. \r\n\r\n\r 1
A loss of engine power due to carburetor icing, and the pilot’s subsequent exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and impact with terrain. \r\n\r\n\r 1
The pilot's failure to maintain the runway heading during an aborted go-around, which resulted in a hard landing. \r 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r 1
The pilot’s failure to maintain airplane control following a reduction of thrust in the left engine during takeoff. The reason for the reduction in thrust could not be determined. Contributing to the accident was the pilot’s failure to conduct the airplane manufacturer’s emergency procedure following a loss of power in one engine and to follow the manufacturer’s checklists during all phases of operation.\r 1
The separation of the left steering spring from the tailwheel assembly during landing for reasons that could not be determined, which resulted in a ground loop.\r\n\r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control during landing with a gusting crosswind, which resulted in a ground-loop. \r 1
The pilot's decision to maneuver in close proximity to terrain while attempting to remain in an area of lift, which resulted in a collision with trees. \r 1
A total loss of engine power due to fuel starvation as a result of the flight instructor's fuel mismanagement.\r 1
The pilot's exceedance of the airplane's critical angle of attack while maneuvering toward the runway, which resulted in an aerodynamic stall and a loss of control. 1
The pilot's failure to maintain a proper descent rate and landing flare during landing with a tailwind, which resulted in a hard landing and a subsequent loss of directional control, runway excursion, and collision with objects.\r\n\r\n\r 1
The pilot’s improper decision to load the airplane beyond its allowable gross weight limits, which resulted in an impact with a tree and collision with terrain. \r 1
The pilot's failure to maintain directional control during landing and the subsequent go-around in gusting crosswind conditions. 1
Maintenance personnel’s improper installation of an improperly sized clamp on the fuel supply line, which allowed air to enter the supply line, a subsequent loss of engine power, and a forced landing.\r\n\r 1
A reported stuck throttle for reasons that could not be determined during postaccident examinations and subsequent loss of control during hover. \r 1
The pilot’s failure to attain sufficient altitude during the initial climb to clear trees due to an encounter with windshear.\r 1
The pilot’s decision to continue low-level aerial application flight maneuvers after the low fuel warning light illuminated, which resulted in a partial loss of engine power due to fuel exhaustion.\r 1
The pilot’s failure to maintain clearance from mountainous terrain prior to encountering a downdraft, which resulted in a forced landing and collision with terrain. \r 1
The airplane’s inability to maintain altitude during the initial climb due to a degradation in the airplane’s performance due to high-density altitude conditions. Contributing to the accident was the pilot’s failure to conduct preflight performance planning calculations.\r 1
The pilot’s failure to maintain directional control during taxi which resulted in a ground loop.\r 1
The pilot’s failure to maintain control of the airplane during landing.\r 1
A loss of engine power for reasons that could not be determined due to a lack of available evidence. \r 1
A loss of engine power due to fuel starvation and the pilot's mismanagement of the available fuel.\r 1
The student pilot’s inadequate inflight navigation and the flight instructors delayed remedial action which resulted in a collision with trees. \r 1
The pilot’s failure to monitor the environment and maintain a proper glidepath on approach which, resulted in a collision with the airport perimeter fence. \r 1
The pilot’s improper landing flare, which resulted in abnormal runway contact and the nose landing gear collapsing. \r 1
The airplane’s impact with birds during approach. \r 1
The pilot’s failure to maintain directional control of the airplane after landing with a quartering tailwind. \r 1
The pilot's failure to maintain clearance from a powerline during a low reconnaissance, with sun glare. \r 1
The pilot’s failure to properly determine the correct fuel quantity during preflight inspection that resulted in a loss of engine power during approach due to fuel exhaustion.\r 1
The pilot’s failure to maintain airplane control during landing with a gusting crosswind which, resulted in a hard landing and collision with terrain.\r 1
The pilot’s failure to maintain directional control during taxi, which resulted in a ground loop.\r 1
The pilot’s failure to maintain directional control of the tailwheel equipped airplane during a crosswind landing and the flight instructor’s inadequate remedial action. \r 1
The pilot and flight instructor’s failure to ensure that the landing gear were extended prior to landing. \r 1
The pilot’s failure to attain a proper touchdown point on the runway while landing in gusting wind conditions, which resulted in a runway overrun. Contributing to the accident was the pilot’s distraction due to an electrical issue. \r 1
The pilot’s failure to maintain adequate clearance from a parked helicopter while hovering to reposition for takeoff. \r 1
The pilot’s decision to takeoff on remote snow covered terrain which, resulted in a nose-over.\r 1
The loss of engine power due to carburetor icing and the pilot’s failure to utilize carburetor heat. \r 1
The pilot’s loss of airplane control during a go-around as it encountered wake turbulence from a slow hover taxiing helicopter. \r 1
The pilot’s loss of control during landing when the airplane encountered ice and snow on the runway.\r\n\r 1
The failure of the certified flight instructor to attain the proper glidepath which resulted in a collision with a fence and terrain.\r 1
The pilot’s failure to maintain directional control while landing in gusty crosswind conditions which resulted in a runway excursion. \r\n\r 1
The pilot’s excessive left brake pedal application during landing roll, which resulted a loss of directional control, runway excursion, and nose over. \r 1
The pilot’s failure to maintain directional control during the landing. \r 1
The pilot’s failure to maintain clearance during takeoff from a person on the ground who sustained a serious injury as a result of the collision. \r 1
The pilot’s failure to maintain adequate clearance from a powerline during an agricultural application pass.\r 1
The pilot’s inadequate preflight inspection and fuel planning which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot’s impact with a buoy on takeoff which resulted in a nose-over. \r 1
The pilot’s excessive use of brakes during landing, which resulted in a nose-over. Contributing to the accident was the flight instructor’s inadequate supervision and the gusty tailwind conditions. \r 1
The loss of engine power for undetermined reasons based on available evidence. \r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with a fence. \r 1
The pilot’s improper flight control inputs which resulted in a loss of directional control and a nose-over. \r 1
The pilot’s loss of directional control while taxiing at high speed, which resulted in a ground loop. \r 1
The pilot’s failure to attain a proper touchdown point due to excessive airspeed, which resulted in a runway excursion and collision with an object near the end of the runway. \r 1
The pilot’s inadequate engine hand propping procedure resulting in the unoccupied airplane’s unintended movement and subsequent impact with a hangar.\r 1
The unexpected change in wind speed and direction during the landing which resulted a runway overrun.\r 1
The pilot’s failure to maintain directional control while landing, which resulted in a runway excursion and collision with terrain.\r 1
The pilot’s failure to maintain adequate clearance from a tree during takeoff, which resulted in a loss of directional control and impact with terrain. \r 1
The pilot’s failure to maintain clearance from the tower during low-level agricultural operations. \r 1
The pilot’s high flare and failure to execute a go-around which resulted in a hard landing and runway excursion.\r 1
The pilot's loss of directional control while landing, which resulted in a runaway excursion and subsequent ground loop.\r 1
The second pilot’s diverted attention while taxing which, resulted in his failure to maintain clearance from another airplane holding short of the runway. \r 1
The pilot’s improper landing flare which resulted in a bounced landing, a loss of control, and runway excursion. \r 1
The pilot’s failure to maintain control of the helicopter with a stuck skid, which resulted in a dynamic rollover.\r 1
The pilot’s improper landing flare which resulted in a hard landing following a partial loss of electrical power. Contributing to the accident was the pilot’s distraction and hampered visual function. \r 1
The pilot’s failure to maintain adequate clearance from crops during an agricultural flight.\r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground-loop and collision with terrain.\r 1
The pilot’s improper flare during landing which resulted in an attempted go-around, loss of control, and aerodynamic stall. \r 1
The pilot’s unstable approach to land in turbulent conditions, which resulted in a hard landing short of the runway and subsequent loss of directional control and collision with terrain. \r 1
The pilot’s failure to maintain clearance from the fence while on final approach.\r 1
The pilot’s failure to maintain directional control during landing which resulted in a ground loop. \r 1
The pilot’s failure to maintain airplane control during landing after an encounter with a wind gust which resulted in a collision with trees.\r 1
The pilot’s failure to maintain clearance from the trees during a go-around. \r 1
The pilot’s failure to maintain directional control during the landing roll which, resulted in a runway excursion and collision with a tree.\r 1
The pilot's improper fuel planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent hard landing on uneven terrain. \r 1
The student pilot’s failure to maintain control while landing the gyroplane.\r 1
The pilot applicant’s delayed reaction to the balloon's increased rate of descent, which resulted in impact with a light pole.\r 1
The pilot’s failure to maintain directional control of the airplane during landing with a gusting crosswind that resulted in a runway excursion.\r\n\r 1
The pilot’s failure to maintain proper airspeed on approach resulting in an extended touchdown, bounced landing, and runway excursion.\r\n\r 1
The pilot’s failure to maintain clearance from terrain during a descent that resulted in an impact with terrain.\r 1
The pilot’s inadequate preflight inspection, which resulted in a total loss of engine power due to fuel contamination.\r 1
The pilot’s failure to maintain stabilized lateral control during landing in gusty conditions which resulted in a dynamic rollover when the skids contacted the platform unevenly. \r 1
The pilot’s decision to land on the contaminated runway with previous reports of unfavorable braking action.\r 1
The pilot’s improper landing flare which, resulted in a bounced landing, loss of airplane control and subsequent nose over. \r 1
The non-certificated pilot’s exceedance of the airplane’s critical angle of attack during the initial climb, which resulted in an aerodynamic stall and loss of airplane control at too low of an altitude to recover.\r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack while on final approach to land which resulted in an aerodynamic stall and hard landing.\r 1
The pilot’s improper landing flare, which resulted in a bounced landing. \r 1
Loss of directional control during landing with a tailwind.\r 1
The pilot’s failure to maintain directional control during the takeoff roll which resulted in an aborted takeoff and collision with terrain. \r 1
The pilot’s improper landing flare and subsequent failure to maintain directional control of the airplane during landing, which resulted in a runway excursion. \r 1
The pilot’s loss of control in the landing pattern resulting in an aerodynamic stall and impact with terrain.\r 1
The pilot's failure to maintain a proper approach path in flat light conditions, which resulted in landing short of the runway and impact with terrain.\r 1
The pilot's failure to maintain clearance from power lines during low-level flight.\r 1
The solo student pilot's improper landing flare and bounced landing, which resulted in a runway excursion and impact with a parked vehicle and hanger.\r 1
The failure of the pilot to maintain directional control during takeoff, which resulted in an impact with a tree.\r 1
The pilot’s failure to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r 1
The flight crew’s failure to verify the landing gear position prior to landing. Contributing to the accident was an overload in the landing gear motor electrical circuit which resulted in the circuit breaker opening, preventing the landing gear from extending. \r 1
The pilot’s failure to compensate for a wind gust during the landing roll, which resulted in a loss of directional control and collision with terrain\r 1
The pilot’s fuel mismanagement, which resulted in a total loss of engine power due to fuel exhaustion and subsequent impact with trees during a forced landing.\r\n\r 1
The pilot’s decision to perform the takeoff on the soft, wet, turf runway, with the tailwheel equipped airplane, which resulted in a nose-over.\r 1
The student pilot's unstabilized hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor's inadequate supervision of the student and his delayed remedial action.\r 1
The pilot's failure to maintain an appropriate altitude above obstacles, which resulted controlled flight into a powerline. \r 1
The student pilot’s improper left rudder input after power application during the touch-and-go landing which resulted in a runway excursion and collision with airport lighting equipment. Contributing to the accident was the flight instructor’s inadequate supervision of the student.\r 1
The airplane’s inability to climb during takeoff due to a degradation of engine performance due to high density altitude. Contributing to the accident was the pilot’s decision to continue the takeoff. \r 1
The pilot’s improper throttle input which resulted in a loss of engine power and subsequent impact with terrain.\r 1
The airplane’s collision with a deer on the runway during landing.\r 1
The pilot’s loss of airplane control during takeoff and subsequent impact with trees and terrain. Contributing to the accident was the pilot’s lack of experience in the accident airplane. \r 1
The pilot’s decision to continue visual flight into an area of instrument meteorological conditions, which resulted in the pilot experiencing a loss of visual reference and subsequent controlled flight into terrain.\r 1
The pilot’s improper landing flare which resulted in a bounced landing.\r 1
The student pilot’s incorrect tail wheel takeoff procedure, and the flight instructor’s lack of remedial action, which resulted in a nose over. \r 1
Overheating of two lithium batteries in the paramedic’s flight suit pocket resulting in an explosion and fire that seriously injured the paramedic as the helicopter was about to take off. \r 1
The pilot’s failure to maintain clearance from power lines during approach for landing. \r 1
The pilot's failure to maintain directional control during the landing roll \r 1
The pilot’s failure to ensure the airplane’s wings were free of contaminates before departure.\r 1
The pilot’s failure to maintain control during the landing with gusty wind. \r 1
The pilot’s encounter with a flock of birds on final approach, which resulted in a loss of control, an aerodynamic stall and spin, and impact with trees and terrain.\r 1
The pilot’s failure to ensure adequate terrain clearance during an approach. Contributing to the accident was the flight instructor’s delayed remedial action when the airplane descended too low after transitioning to a visual descent to the runway.\r 1
The windshear encounter on short final approach, which resulted in an excessive decent rate and ground impact.\r\n \r 1
The pilot’s inadequate flare and loss of directional control during landing which resulted in a runway excursion. Contributing to the accident was the instructor’s delayed remedial action. \r 1
The pilot’s failure to maintain adequate clearance from a tree while landing. \r 1
The loss of direction control while maneuvering off the plowed surface to avoid a collision with a vehicle.\r 1
The pilot’s failure to ensure the snow-covered takeoff area was safe, which resulted in a collision with ice and subsequent landing gear damage. \r 1
The pilot’s failure to maintain directional control during landing in cross wind conditions.\r 1
The student pilot’s loss of directional control while landing.\r 1
The pilot’s failure to maintain the proper descent rate during an off-airport landing. 1
The noncertificated pilot’s failure to maintain control of the airplane, which led to the airplane exceeding its critical angle-of-attack and subsequent aerodynamic stall. Contributing to the accident was the pilot’s decision to attempt a flight with no previous flight experience.\r 1
The pilot’s improper flap setting, which resulted in a collision with trees during a takeoff attempt from a short grass field.\r 1
The loss of brake pressure on the left brake due to a failed O-ring seal.\r 1
The pilot’s decision to land on an unmaintained runway surface, which resulted in a loss of control and nose over.\r 1
An inflight collision with a bird, which resulted in substantial damage to the left wing.\r 1
The pilot’s failure to obtain a proper touch down location on a wet grass runway, resulting in a runway overrun and impact with terrain. \r 1
The pilot’s failure to maintain airplane control that resulted in an aerodynamic stall during approach and impact with terrain.\r 1
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight.\r 1
The pilot's failure to maintain clearance from a tree while maneuvering. 1
The pilot’s failure to maintain control during the descent which resulted in a hard landing.\r 1
The pilot’s failure to maintain a proper glidepath which resulted in a collision with terrain. \r 1
The in-flight encounter while on final approach with high-speed trailing vortices from a military helicopter, resulting in abnormal runway contact. Contributing to the accident was the Cirrus pilot’s incorrect selection of the common traffic advisory frequency on the aircraft’s radio.\r 1
The student pilot accidentally pulling the mixture control in the landing pattern which resulted in a loss of engine power and forced landing.\r 1
The pilot’s failure to attain the proper touchdown point, which resulted in a runway overrun and collision with terrain.\r 1
The pilot’s failure to attain a proper touchdown point, and his delayed decision to go around which, resulted in a collision with trees. 1
The pilot's failure to maintain control of the helicopter during a hover which, resulted in a collision with a hangar. \r 1
Partial loss of engine power during a low pass, due to carburetor icing and the pilot’s failure to use carburetor heat during the landing approach.\r 1
The pilot's exceedance of the airplane's critical angle of attack during a go-around, which resulted in an aerodynamic stall and subsequent impact with terrain. \r 1
The pilot’s failure to maintain directional control during the landing roll. \r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing. \r 1
The pilot’s failure to locate the airport which resulted in an approach to a road and subsequent collision with powerlines during a go-around in low light conditions. \r 1
The student pilot’s excessive airspeed during the landing approach and his delayed remedial action, which resulted in the airplane striking obstacles during an aborted landing. Contributing was the pilot’s decision to land with a tailwind.\r 1
The pilot’s failure to maintain control of the airplane during landing in gusty crosswinds.\r\n\r\n\r 1
The pilot’s delayed remediation following an aborted takeoff run, which resulted in a runway overrun and collision with trees. \r 1
The pilot's excessive application of the airplane’s wheel brakes while landing, which resulted in a nose over.\r 1
The pilot’s failure to maintain control of the airplane during landing.\r\n\r\n\r 1
The pilot’s improper flare during a landing attempt in crosswind conditions, which resulted in a bounced landing and impact with the ground. \r 1
The pilot’s inability to extend the main landing gear due to incomplete maintenance, which resulted in a partial wheels-up landing and the mechanic’s failure to follow proper maintenance procedures that led to the loss of main landing gear system hydraulic pressure and the subsequent failure of the main landing gear to fully extend.\r\n\r 1
The flight instructor’s delayed remedial action, which resulted in a loss of control during an attempted go-around.\r 1
The pilot’s selection of unsuitable terrain for takeoff, which resulted in a loss of control and ground loop. \r 1
Both pilots’ failure to maintain control during the landing flare and the flight instructor’s failure to maintain control during an attempted go-around, in gusting quartering headwind conditions, which resulted in the exceedance of the airplane’s critical angle of attack and an aerodynamic stall at low altitude.\r 1
The pilot’s failure to maintain adequate airspeed while maneuvering at low altitude, which resulted in an aerodynamic stall and impact with the ground.\r 1
The pilots failure to maintain airplane control during the landing roll after experiencing a tailwind gust which required excessive braking and resulted in the airplane nosing over. \r 1
The flight instructor’s failure to compensate for a downdraft during takeoff, which resulted in a loss of control and collision with terrain. \r 1
The pilot's improper flare which resulted in a bounced landing, loss of directional control and collision with terrain. \r 1
The flight instructor’s failure to maintain aircraft control resulting in the exceedance of the glider’s critical angle of attack following the breakage of the weak/safety link during a winch launch, which resulted in an aerodynamic stall and spin, and subsequent impact with trees and terrain.\r\n\r 1
The pilot’s loss of directional control while landing, which resulted in a landing gear collapse.\r 1
The pilot’s failure to maintain control of the airplane in gusting crosswind conditions.\r 1
The pilot’s failure to maintain directional control of the airplane during takeoff while operating in gusting wind conditions, which resulted in a runway excursion and subsequent collision with terrain. \r 1
The pilot’s failure to maintain airplane control while on approach in microburst or windshear conditions, which resulted in impact with a runway sign. \r 1
The pilot’s failure to maintain clearance from powerlines while maneuvering for landing, which resulted in a wire strike and impact with terrain. \r 1
The pilot's failure to maintain directional control during a soft field takeoff. \r\n\r\n\r 1
The pilot’s failure to properly secure the left wing fuel cap before flight, which resulted in a loss of engine power due to fuel exhaustion.\r 1
The pilot's failure to maintain directional control after an encounter with a windshear during the landing roll, which resulted in a runway excursion.\r 1
The pilot’s unstable approach to land, which resulted in a hard landing. 1
The student pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and collision with a runway sign.\r 1
The pilot's loss of directional control during an aborted landing in crosswind conditions.\r 1
The partial loss of engine power, during cruise flight, due to the formation of carburetor ice, which resulted in a forced landing to an open field where the airplane nosed over. \r 1
The pilot’s failure to maintain airplane control during the landing roll, which resulted in a nosed over. \r 1
The student pilot’s failure to maintain directional control during the landing roll, and the flight instructors delayed remedial action which resulted in a runway excursion and collision with terrain. \r\n \r 1
The Kingair pilot’s failure to maintain clearance from another airplane while taxiing, which resulted in a ground collision. \r 1
The pilot’s inadequate compensation for the prevailing wind conditions, which resulted in a loss of directional control during the approach and landing.\r 1
The pilot’s inability to maintain control after the balloon's encounter with an unexpected wind gust, which resulted in a collision with a tree.\r 1
The pilot’s improper decision to conduct a low altitude flight and his failure to see and avoid powerlines. Contributing was the operator’s lack of safety guidance or a safety policy for low-altitude operations.\r 1
The pilot’s failure to maintain directional control during the landing roll with variable and gusty wind conditions.\r\n\r\n\r 1
The flight instructor’s failure to confirm the position of the left engine’s auxiliary fuel boost pump switch during a simulated engine out procedure, which resulted in an excess amount of fuel in the engine and subsequent partial loss of power during a go-around/rejected landing. Contributing to the accident was the flight instructor’s failure to maintain control of the airplane, which resulted in a hard landing. \r 1
The student pilot's unintentional selection of raising the landing gear instead of the flaps during a touch-and-go landing, and the flight instructor's delayed remedial action, which resulted in the landing gear retracting during the landing roll.\r 1
The pilot’s failure to attain a proper touchdown point on landing, which resulted in a collision with the runway lip.\r 1
The pilot’s failure to maintain airplane control during a simulated engine out landing which resulted in impact with terrain. \r 1
A loose stand-off clamp which resulted in a throttle assembly malfunction, and the inability of the engine to produce full power during the attempted takeoff.\r 1
The pilot’s failure to obtain a proper touchdown point on the runway, which resulted in a runway excursion.\r 1
The solo student pilot’s failure to maintain directional control during landing in crosswind conditions, which resulted in a runway excursion and a nose-over. \r 1
The pilot’s improper pitch control during a go-around in gusting crosswind conditions, which resulted in a tail strike and a runway excursion.\r 1
The pilot's failure to maintain lateral control during takeoff after an encounter with a gusting wind, which resulted in a wing strike. \r 1
The pilot's decision to land the airplane with a tailwind, which led to a runway excursion. \r 1
The pilot’s failure to maintain directional control while landing with gusting wind conditions, which resulted in a ground loop.\r\n \r 1
The airplane's impact with a deer during takeoff.\r 1
The pilot’s decision to initiate a flight with a failed mixture control cable which resulted in a total loss of engine power. \r 1
The pilot’s loss of directional control on landing. Contributing to the outcome was the pilot’s decision to continue the aborted landing after the airplane had departed the runway surface. \r 1
The pilot’s failure to maintain airplane control during a landing with a tailwind which resulted in excessive ground speed, runway over run and subsequent nose over. \r 1
A tail rotor blade strike to an undetermined object while practicing approaches to unimproved terrain. \r 1
The pilot's failure to maintain directional control during taxiing in crosswind conditions, which resulted in a taxiway excursion and collision with a fence.\r 1
The pilots over application of the brakes while landing on a wet grass runway, which resulted in a loss of control and nose-over.\r 1
The pilot’s failure to maintain directional control during the takeoff roll, which resulted in a ground loop and collision with terrain. \r 1
The pilot’s failure to maintain helicopter control during an encounter with a dust devil shortly after takeoff. \r 1
The pilot’s failure to maintain directional control during takeoff in a gusty crosswind condition. \r 1
The pilot’s failure to maintain directional control during landing, with a crosswind, which resulted in a runway excursion and subsequent impact with terrain.\r 1
The student pilot’s improper pitch control and landing flare, which resulted in a hard bounce and subsequent porpoised landing. \r 1
The pilot’s improper landing flare, which resulted in a hard landing and his subsequent inadequate pitch and airplane control during a go around which resulted in a nose landing gear collapse. \r 1
The pilot’s failure to maintain directional control during landing in gusty wind conditions which resulted in a runway excursion and collision with terrain.\r 1
The pilot’s improper positioning of the helicopter on the landing pad, and his failure to monitor and control the helicopter as fuel and chemical product were loaded, which led to the helicopter tipping and sliding off the landing pad, and subsequently impacting the ground.\r\n\r\n\r 1
The pilot’s failure to maintain directional control during the takeoff roll which resulted in a runway excursion and nose-over event.\r 1
The failure of the right main landing gear to fully extend during landing as a result of the underinflated right main landing gear oleo strut. \r 1
The pilot’s inability to maintain directional control during landing roll due to a flat tire. \r 1
The pilot's use of excessive braking during the landing roll, which resulted in a nose-over.\r 1
A landing gear collapse after the airplane struck a hole during an off-runway precautionary landing.\r 1
The pilot’s inaccurate estimate of the fuel level during his preflight inspection, which resulted in fuel exhaustion during cruise flight and a total loss of engine power.\r 1
The pilot's failure to maintain directional control during landing with gusting wind.\r 1
The glider pilot’s loss of visual references during the landing approach resulting in an off-airport landing on rough sloping terrain.\r\n\r 1
The pilot’s failure to identify rising terrain and to maintain terrain clearance from trees during an aerial application pass that resulted in an in-flight collision with trees and terrain.\r\n\r 1
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight. \r 1
An in-flight separation of the control stick from the torque tube assembly, which resulted in a loss of directional control during the landing roll and subsequent on-ground collision. \r 1
The pilot’s inadequate performance planning and decision to continue the takeoff which, resulted in a runway overrun and collision with terrain.\r 1
The pilot’s improper landing flare which resulted in a bounced hard landing and subsequent nose over. \r 1
The pilot’s failure to maintain directional control during takeoff with gusting winds, which resulted in an inflight collision with a fence.\r 1
A total loss of engine power due to the pilot’s failure to premix the two-cycle oil/gasoline mixture, which resulted in a forced landing in a field and collision with terrain. \r 1
The loss of engine power due to carburetor ice. Contributing to the accident was the pilot’s failure to use carburetor heat. 1
The pilot’s improper landing flare while making a power off practice autorotative landing. Contributing was the decreased visual cues provided by the recently paved runway during the night landing conducted with the aid of night vision goggles.\r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a runway excursion and a subsequent impact with an obstacle.\r\n\r 1
The pilot’s inadequate flare and subsequent loss of airplane control during an aborted landing in gusting wind, which resulted in impact with trees.\r 1
The pilot's distraction due to adjusting the radio while taxing at night, which resulted in a taxiway excursion and subsequent impact with terrain. \r 1
The pilot’s failure to maintain directional control during the landing roll with hydroplaning conditions.\r\n\r 1
The flight instructor’s failure to maintain aircraft control during the landing flare and subsequent attempted go-around with a strong quartering crosswind. \r\n\r\n\r 1
The pilot’s failure to extend the landing gear during landing and the check pilot’s inadequate supervision. \r 1
The pilot’s encounter with a tailwind during takeoff roll, which resulted in an aborted takeoff, collision with a ditch and subsequent nose over.\r 1
The pilot’s failure to properly position of the fuel selector valve, which resulted in a loss of engine power during initial climb due to fuel starvation. \r 1
The pilot’s loss of control while maneuvering at low altitude.\r 1
A runway incursion, which resulted in a go-around, and subsequent forced landing when the airplane was not able to climb at a rate sufficient to clear approaching rising terrain. \r 1
The student pilot’s inadequate monitoring of his fuel state during a solo training flight, which resulted in fuel starvation, a total loss of engine power, and a forced landing.\r 1
The pilot’s failure to use the landing checklist and to extend the landing gear, which resulted in a gear-up landing.\r 1
The pilot’s failure to maintain directional control during takeoff in gusting wind conditions which resulted in a loss of control and impact with terrain.\r 1
The pilot’s inadequate decision to continue the takeoff after sufficient airspeed was not attained and his failure to maintain aircraft control while maneuvering to avoid obstructions, which resulted in a collision with the ground. \r 1
The pilot’s failure to ensure an adequate fuel supply for the intended flight.\r 1
The pilot’s failure to maintain airplane control during a crosswind landing which resulted in an impact with terrain. \r 1
The pilot’s failure to maintain control of the airplane during takeoff in turbulent weather conditions. \r 1
The pilot's failure to maintain directional control during a crosswind landing, which resulted in a runway excursion.\r 1
The pilot’s failure to maintain helicopter control after an encounter with settling with power during approach at an altitude that was too low for recovery, which resulted in a hard landing.\r 1
The loss of engine power due to fuel vapor lock.\r 1
The pilot’s delayed deployment of the landing gear, which resulted in the collapse of the main landing gear. \r 1
The pilot’s failure to review the weather conditions before the flight, which resulted in a loss of directional control during takeoff due to a sudden change in wind direction and speed associated with an approaching thunderstorm.\r 1
The pilot’s inability to maintain airplane control during takeoff when the airplane encountered a tailwind and gusting winds which resulted in an aborted takeoff and forced landing to rough terrain. \r 1
The pilot’s failure to maintain control of the balloon due to an unexpected high surface wind and downdraft, which resulted in a hard landing. \r 1
The airplane’s encounter with windshear on takeoff, which resulted in a loss of control and impact with the ground.\r 1
The pilot’s failure to maintain directional control during landing\r 1
The pilot’s failure to adequately monitor his fuel quantity during flight which resulted in a partial loss of engine power due to fuel starvation.\r 1
The pilot receiving instruction’s failure to maintain directional control during the landing roll, and the flight instructor’s delayed remedial action. \r 1
The student pilot’s improper landing flare, which resulted in a bounced landing and subsequent loss of directional control.\r 1
The student pilot’s improper landing flare, which resulted in a hard landing and loss of directional control.\r 1
The pilot’s failure to maintain clearance from a ditch, which resulted in impact with terrain.\r 1
The pilot’s failure to maintain yaw control during landing which resulted in a loss of tail rotor effectiveness.\r 1
The pilot’s improper use of the airplane’s fuel system, which resulted in a total loss of engine power due to fuel starvation.\r\n\r\n\r 1
The pilot’s failure to attain a proper touchdown point, which resulted in the airplane contacting the ground short of the runway.\r 1
The pilot’s inadequate compensation for gusting winds while maneuvering on the ground. \r 1
The pilot did not maintain aircraft and directional control during the landing in variable wind conditions resulting in abnormal contact with the terrain.\r 1
The pilot’s inadequate preflight inspection which resulted in a failure of the right main landing gear tire on landing rollout, a subsequent loss of directional control, and landing gear collapse.\r 1
The pilot’s over application of the brakes, which resulted in a nose over. \r 1
The flight instructor and student pilot’s failure to properly manage the airplane’s available fuel resulting in fuel starvation. \r 1
The in-flight fatigue failure of an air-conditioning system hose which resulted in a precautionary landing and impact with a road sign. \r\n \r 1
The flight crew’s improper fuel management that resulted in fuel starvation and the loss of engine power. \r 1
The non-certificated pilot's failure to maintain aircraft control on departure in high density altitude conditions which resulted in an aerodynamic stall.\r 1
The pilot’s failure to maintain directional control during takeoff which resulted in a ground loop and collision with terrain. \r 1
The pilot’s failure to maintain directional control during landing on a highway, which resulted in an impact with terrain and subsequent nose over. \r 1
The pilot’s failure to maintain a proper glidepath during the landing approach, which led to an impact with a fence.\r\n\r 1
The pilot’s failure to maintain directional control of the airplane during landing, resulting in a runway excursion and collision with an airport sign.\r 1
The pilot’s failure to maintain adequate clearance with trees during landing.\r 1
Inadequate maintenance of the brake system which resulted in the caliper binding closed and the subsequent loss of directional control during the landing roll. \r 1
The pilot’s improper landing flare, and bounced landing, which resulted in a ground loop and runway excursion.\r 1
An impact with a powerline as a result of an unexpected wind gust.\r 1
The pilot's failure to maintain control of the airplane during a crosswind landing, which resulted in a hard landing and runway excursion.\r 1
The pilot’s failure to maintain directional control during takeoff which resulted in an impact with terrain. Contributing to the accident was the pilot’s momentary distraction from conflicting boat traffic. \r 1
The pilot’s inadequate preflight inspection, during which he failed to detect water contamination in the fuel system, which resulted in a loss of engine power on approach.\r 1
The pilot’s failure to maintain clearance from a power line pole while preparing for a low-level aerial application pass. \r 1
The pilot’s improper control input during landing which resulted in an exceedance of the aircraft’s critical angle of attack, aerodynamic stall and impact with the ground.\r 1
The pilot was not able to stop the airplane on the remaining runway after an aborted takeoff, which resulted in a runway excursion and the airplane impacting a fence.\r 1
The pilot's loss of helicopter control on approach to land due to a settling with power condition, which resulted in a hard landing.\r 1
The student pilot’s loss of helicopter control and the flight instructor’s delayed remedial action while providing hover training which resulted in a dynamic rollover. 1
The pilot’s failure to attain proper flare during landing, resulting in a bounced landing.\r 1
The student pilot's improper flare, which resulted in a loss of control during landing.\r 1
The flight instructor’s failure to adequately monitor the pilot flying, which resulted in a nose-wheel first hard landing. \r\n\r 1
The pilot’s failure to maintain control during the landing flare in gusting wind conditions. 1
The pilot’s failure to maintain directional control during landing resulting in a runway excursion. \r 1
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight and subsequent water ditching.\r 1
The pilot’s failure to maintain clearance from obstructed terrain during takeoff. 1
The loss of engine power due to carburetor icing and the pilot’s failure to utilize carburetor heat.\r 1
The pilot’s failure to detect the tripped landing gear motor circuit breaker, which prevented the gear from fully locking in the down position, and subsequent collapse during landing. \r 1
The student pilot not maintaining directional control during landing which resulted in a runway excursion.\r 1
The pilot's failure to complete proper preflight performance planning and his operation of the airplane outside of the manufacturer's specified weight and balance limitations, which resulted in the airplane’s inability to maintain altitude and an impact with trees and terrain during an attempted forced landing. \r 1
The failure of the hydraulic power supply’s electric motor due to wear, which resulted in the left main landing gear and nose gear not fully extending and locking into place during landing. Contributing to the accident was the pilot's failure to adequately execute the emergency gear extension procedure. \r 1
The pilot’s failure to maintain control during the landing with a quartering tailwind.\r 1
The pilot's failure to maintain directional control of the airplane during landing, which resulted in a ground loop.\r 1
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight. Contributing to the accident was the pilot’s decision to overfly a suitable landing site which resulted in an off-field landing in a lake.\r 1
The pilot’s failure to maintain directional during an aborted landing, which resulted in a runway excursion and collision with two parked trailers.\r 1
The pilot’s improper landing flare, which resulted in a bounced landing and subsequent nose landing gear collapse. \r 1
The pilot's encounter with sinking air conditions that resulted in a loss of lift and a subsequent loss of control. \r 1
The pilot’s premature retraction of the landing gear during a go-around, which resulted in a gear up landing. 1
The pilot’s failure to maintain directional control during landing in gusting wind. \r 1
The helicopter’s impact with a non-biological object, which resulted in substantial damage to a main rotor blade.\r 1
The pilot’s inadequate compensation for the gusting wind conditions with resulted in a loss of control and impact with terrain.\r 1
The pilot’s failure to maintain a proper glide path to the runway. \r 1
The failure of the torsion spring inside the drive clutch assembly of the landing gear actuator which prevented normal and manual extension of the landing gear. \r 1
The student pilot’s failure to maintain airspeed and yaw control of the airplane during an aborted takeoff, which resulted in an aerodynamic stall and impact with the ground. \r 1
The pilot’s inadequate landing flare, which resulted in a hard, bounced landing. \r 1
The pilot was not able to stop the airplane on a wet runway due to hydroplaning.\r 1
The flight crew not maintaining lateral control of the helicopter during hovering operation which resulted in a dynamic rollover.\r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing and a subsequent loss of control.\r 1
The loss of engine power due to fuel starvation. Contributing to the fuel starvation was a faulty experimental fuel gauge. \r 1
The subsequent delamination of the main rotor blades as a result of an unidentified main rotor blade impact with vegetation during a previous flight by another pilot. 1
The pilot’s loss of control following the inadvertent placement of his foot behind the anti-torque pedal.\r 1
The pilot’s failure to maintain control during takeoff in a crosswind, which resulted in abnormal runway contact and a runway excursion.\r 1
The pilot’s failure to extend the landing gear before landing. Contributing to the accident was the pilot’s failure to use the landing checklist. \r 1
The pilot’s failure to maintain directional control of the airplane during take off.\r 1
The pilot's improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion, an emergency landing, and runway excursion.\r 1
The pilot’s failure to maintain directional control during the landing roll. \r 1
A collapse of the airplane’s landing gear during the landing roll for reasons that could not be determined based on the available information.\r 1
The student pilot’s loss of control during a go-around and the delayed remedial action initiated by the flight instructor, which resulted in a runway excursion and collision with trees. 1
The pilot improperly monitored the operating environment which resulted in a collision with a tree located in the middle of a field. \r 1
The pilot’s improper landing flare which, resulted in a bounced landing and subsequent nose over. \r 1
The pilot’s failure to maintain lateral control of the airplane during takeoff in gusting wind.\r 1
The pilot’s failure to maintain directional control during landing roll. 1
The pilot’s loss of airplane control during the landing approach which, resulted in an undershoot and collision with a fence. 1
The pilot’s decision to takeoff from an unimproved surface which resulted in a collision with an object and the airplane nosing over. \r\n \r 1
The passenger lost her grip during landing in a balloon which resulted in her hitting the ground with her shoulder and suffering a serious injury. \r 1
The pilot's failure to maintain control of the airplane during takeoff, which resulted in a collision with terrain. \r 1
The student pilot’s failure to maintain/attain aircraft control during a go-around from a bounced landing that resulted in an aerodynamic stall and impact with terrain.\r\n\r 1
The pilot’s poor pitch control during an aborted takeoff which resulted in a hard landing. \r 1
The pilot’s improper landing flare, which resulted in a bounced landing and the nose landing gear collapsing. \r 1
The pilot’s improper landing flare which resulted in a hard landing. \r 1
The pilot's failure to maintain directional control of the airplane during takeoff, which resulted in a runway excursion and collision with fencing. \r 1
The pilot’s failure to maintain directional control after an attempted go-around, which resulted in a runway excursion and impact with terrain.\r 1
The pilot’s failure to monitor rotor disk speed on takeoff, which resulted in blade flapping and the main rotor blades striking the gyroplane’s tail assembly.\r 1
The pilot's overapplication of brakes during landing, which resulted in a nose-over.\r 1
The pilot’s failure to adequately survey a field for obstructions prior to a low-level aerial application pass, which resulted in an impact with a powerline.\r 1
The pilot’s failure to maintain directional control during takeoff in gusting wind conditions which resulted in a loss of control and impact with the water.\r 1
The pilot's failure to attain a proper touchdown point which, resulted in a runway overrun and collision with trees. \r 1
The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and substantial damage.\r 1
The pilot’s excessive use of brakes which resulted in a nose-over. \r 1
The pilot’s failure to maintain adequate distance from a tree while landing. \r 1
The pilot’s improper landing flare, which resulted in a hard landing and partial loss of directional control. Contributing to the accident was the pilot’s improper decision to depart and land with a known mechanical deficiency with the nose landing gear. 1
The flight instructor’s inadequate remedial actions following the student pilot’s improper control inputs, which resulted in dynamic rollover. 1
The pilot's failure to control the helicopter’s descent rate during landing, which resulted in collision with terrain. 1
Loss of tail rotor effectiveness resulting in an in-flight loss of control.\r 1
The pilot’s failure to remain clear of obstacles while landing. \r 1
The pilot’s inadequate visual lookout while flying at a low level over a river, which resulted in a wire strike. 1
The pilot’s loss of control while landing a tailwheel-equipped airplane with a gusty crosswind.\r\n\r 1
The inadequate securement of the cloth fire extinguisher cover, which resulted in it being blown off the fire extinguisher and ingested into the helicopter’s fenestron during the landing.\r 1
The pilot’s failure to maintain clearance from the power lines during a low-level application pass.\r 1
The pilot not maintaining sufficient altitude to clear an obstruction during the aerial application flight.\r 1
The pilot’s failure to maintain directional control during the landing roll with a gusty crosswind.\r 1
The student pilot’s improper flare, which resulted in a hard landing.\r 1
The pilot’s inadvertent application of the right brake and subsequent loss of airplane directional control, which resulted in a taxiway excursion and impact with trees. \r 1
The pilot’s failure to maintain directional control during the landing roll with a gusting wind. 1
The pilot’s failure to maintain directional control during the landing roll in gusting wind.\r 1
The student pilot’s improper landing flare, and the instructor’s lack of remedial action. 1
The pilot’s failure to maintain directional control during the landing roll with a gusty crosswind. \r 1
The student pilot’s failure to maintain rotor rpm and airspeed and the flight instructor's inadequate remedial action to regain helicopter control during the straight-in autorotation which resulted in a hard landing. 1
The pilot’s failure to maintain adequate clearance from crops during an agricultural flight. \r 1
The pilot’s failure to maintain directional control during takeoff in gusting wind conditions which resulted in the wing exceeding its critical angle of attack, a loss of control and impact with the water.\r 1
The student pilot’s unstable approach and inadequate flare which resulted in a hard, bounced landing. 1
The pilot’s failure to maintain proper approach glide path, which resulted in a collision with a berm.\r 1
The pilot’s failure to maintain directional control during the landing rollout in crosswind conditions, which resulted in a runway excursion and impact with equipment. 1
The pilot’s failure to maintain clearance from power lines during low level aerial application operations due to a distraction.\r 1
The pilot’s improper decision to takeoff from an unimproved airstrip with a high density altitude which degraded its climb performance and led to a collision with vegetation off the end of the airstrip. 1
The pilot's failure to maintain directional control during the landing roll which resulted in a runway excursion and collision with a ditch. \r 1
The pilot’s failure to maintain directional control during takeoff from a gravel driveway resulting in an impact with a tree. \r 1
The failure of the pilot to maintain adequate airspeed during landing resulting in an inadvertent aerodynamic stall.\r 1
The student pilot’s inadvertent use of the fuel mixture knob instead of the carburetor heat knob, which resulted in fuel starvation and a subsequent loss of engine power. \r 1
The loss of engine power due to fuel exhaustion. \r 1
The pilot’s failure to maintain clearance from power lines during low-level operations in light rain conditions.\r 1
The pilot’s failure to maintain directional control during a landing attempt, which resulted in a ground loop and collision with terrain. Contributing to the accident was the absence of an airspeed indicator due to an alternator failure. \r 1
The pilot receiving instructions failure to maintain directional during the takeoff ground roll and the flight instructor’s inadequate supervision. \r 1
The pilot’s failure to maintain proper airspeed while landing in gusting winds, which resulted in a hard landing and a runway excursion. \r 1
The pilot’s failure to apply full power during the practice autorotation recovery, which resulted in a hard landing. \r 1
The pilot’s loss of control during the landing roll. \r 1
The pilot’s rapid reduction of collective following an in-flight loss of control while lifting from a dolly resulting in a hard landing. Contributing to the loss of control was the pilot’s likely inadequate left anti-torque control pedal input during initial liftoff. 1
The pilot’s failure to maintain directional control during landing. Contributing to the accident was the flight instructor’s delayed remedial action during a go-around.\r 1
The flight instructor’s inadequate inflight fuel planning that resulted in fuel exhaustion and a forced landing.\r\n\r 1
The pilot’s failure to maintain airplane control during landing, which resulted in a runway excursion and nose over. Contributing to the accident was the pilot’s inadequate preflight inspection and the pilot’s lack of flight control system knowledge.\r\n\r 1
The pilot’s improper fuel management that resulted in fuel exhaustion and a loss of engine power. 1
A flight attendant received a serious injury during landing.\r 1
The pilot’s delayed decision to abort the takeoff, which resulted in a runway excursion and impact with a ditch.\r 1
The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for landing, which resulted in an aerodynamic stall and impact with terrain. \r 1
The student pilot’s improper landing flare, which resulted in a hard landing. Also causal was the flight instructor’s inadequate remedial action.\r 1
The pilot’s improper in-flight planning and fuel management that resulted in the loss of engine power due to fuel exhaustion.\r\n\r 1
The pilot under instruction’s improper landing flare, and the flight instructor’s delayed remedial action. 1
The pilot’s failure to maintain adequate airspeed during landing leading to an aerodynamic stall and subsequent impact with the ground.\r 1
The pilot’s failure to establish a stabilize approach criteria during low-level maneuvering to the runway, which resulted in a hard landing and contact with a hay bale.\r 1
The airplane pilot’s inadvertent encounter with rotor wash/turbulence during short final approach, which resulted in a loss of control in flight.\r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing.\r 1
The pilot's inadequate flare and bounced landing which resulted in loss of directional control of the airplane during the landing roll.\r 1
The pilot’s misidentification of the runway during the visual approach which resulted in an off runway landing and impact with a trailer. \r 1
The pilot's loss of directional control while landing, which resulted in a ground loop. 1
The pilot’s failure to maintain directional control during the landing roll with a quartering tailwind. \r 1
The student pilot’s inadequate flare resulting in a loss of airplane control during landing with gusting wind conditions. 1
The pilot's loss of directional control while landing, which resulted in a runway excursion. 1
The pilot’s failure to extend the landing gear before landing. Contributing to the accident was the pilot’s failure to utilize a prelanding checklist. \r 1
The malfunction of the braking system fluid line, which resulted in an overrun of the runway.\r 1
The pilot’s delayed decision to abort the landing, which resulted in a runway overrun.\r 1
The pilot’s failure to maintain directional control of the airplane during takeoff. \r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground loop.\r 1
The fuelers improper action during the refueling process. \r 1
The pilot’s failure to maintain adequate airspeed while maneuvering on final approach which resulted in a high sink rate and subsequent collision with a fence. \r 1
The pilot’s failure to retract the flaps during a go-around from a bounced landing, which resulted in a collision with trees then terrain.\r 1
The pilot’s failure to establish a controlled descent rate during landing which resulted in the airplane touching down short of the runway. \r 1
The non-instrument-rated pilot’s decision to fly a visual flight rules only helicopter in instrument meteorological conditions, which resulted in a collision with trees and terrain.\r 1
The flight instructor's failure to extend the landing gear and perform a before landing checklist.\r 1
The pilot’s delayed go-around decision following an encounter with a tailwind during landing, which resulted in an inability to climb and subsequent impact with trees.\r 1
The pilot’s poor decision to exit the helicopter with the engine and main rotor still operating. \r 1
The pilot’s failure to maintain control of the airplane during landing for reasons that could not be determined based on available information.\r 1
The pilot's loss of directional control while landing, which resulted in a ground loop.\r 1
The pilot’s failure to maintain pitch control during a go-around maneuver, which resulted in an aerodynamic stall and impact with the ground. \r 1
The student pilot’s incorrect landing flare, which resulted in a hard bounced landing and nose landing gear collapse.\r 1
The loss of directional control during the landing roll, due to missing hardware which resulted in the separation of the nose landing gear torque links.\r 1
The pilot’s failure to maintain helicopter control while on the ground when his attention was diverted, which resulted in a dynamic rollover.\r 1
The pilot's failure to maintain directional control of the airplane during landing, which resulted in a runway excursion and a subsequent nose-over.\r 1
The pilot’s selection of unsuitable terrain for taxi which resulted in an impact with trees. \r 1
The gliders encounter with atmospheric conditions where the lift was not sufficient to maintain flight and subsequent impact with mountainous terrain.\r 1
The pilot’s decision to not activate the runway lighting and misjudged the runway location, which resulted in a collision with a windsock. \r 1
The pilot did not maintain directional control during the landing roll resulting in a ground loop.\r 1
The pilot did not maintain directional control during landing, which led to a runway excursion and nose-over of the airplane.\r 1
The pilots improper landing flare which resulted in a hard landing and loss of airplane control. \r 1
The pilot’s failure to maintain control during landing on a soft surface.\r 1
The pilot’s excessive touchdown speed, which resulted in a long landing and impact with terrain.\r 1
The pilot’s inadequate fuel management which resulted in a total loss of engine power due to fuel starvation.\r 1
The pilot’s inadequate compensation for the gusty crosswind wind conditions which resulted in a hard landing and subsequent nose gear collapse.\r 1
The pilot’s failure to maintain airplane control while on final approach, which resulted in a collision with a runway approach light. \r 1
The student pilot’s failure to maintain lateral control and terrain clearance while hovering, and the flight instructor’s delayed remedial action which resulted in a dynamic rollover. \r 1
The pilot’s failure to maintain directional control during takeoff in crosswind conditions which resulted in a loss of control and impact with terrain. \r 1
The flight instructor’s failure to maintain directional control with a quartering tailwind.\r 1
The pilot's improper landing flare and the flight instructor’s delayed remedial action.\r 1
The pilot’s failure to see and avoid wires while conducting an aerial application flight, which resulted in a wire strike and ground impact.\r 1
The pilot’s failure to maintain airplane control during the landing roll on a snow-covered runway surface. \r 1
The pilot’s decision to perform a takeoff from a perpendicular taxiway rather than the airport runway, which led to the airplane striking trees at the end of the departure path. \r\n\r 1
The pilot’s failure to maintain adequate rotor rpm while descending with a gusting tailwind condition, which resulted in a loss of helicopter control.\r 1
The pilot’s failure to maintain directional control during takeoff, which resulted in a runway excursion and impact with terrain. \r 1
The pilot’s failure to maintain adequate clearance during landing on a rooftop helipad. \r 1
A total loss of engine power due to the pilot’s inadequate fuel management which resulted in fuel starvation and subsequent collision with a fence during landing.\r 1
The pilot's failure to maintain a proper approach path in flat light conditions, which resulted in landing short of the intended landing spot and impact with terrain. \r 1
The student pilot's improper landing flare, which resulted in a bounced hard landing.\r 1
The pilot’s improper landing flare, which resulted in overload bending of the nose landing gear leg and subsequent nose-over.\r 1
A loss of control during landing due to the loose and uneven landing surface. \r 1
The pilots misjudged landing approach, which resulted in a long landing and collision with a fence.\r 1
A total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's inadequate preflight fuel inspection.\r 1
The pilot’s failure to maintain clearance from rising terrain while operating in a canyon, which resulted in an impact with terrain\r 1
The pilot's failure to maintain clearance from a tree after encountering brownout conditions and a loss of visual reference during the approach to land. \r 1
The student pilot’s failure to maintain directional control during landing which resulted in a ground loop. \r 1
The pilot’s failure to maintain control of the airplane during taxi with a strong crosswind. \r 1
The pilot’s failure to maintain control of the gyrocopter during takeoff with strong gusty winds. \r 1
The pilot’s failure to extend the landing gear due to distraction.\r 1
The pilot’s diverted attention during landing, which resulted in a loss of directional control. \r 1
The flight instructor’s loss of airplane control during an aborted landing due to a wind shift, which resulted in an impact with a runway sign.\r 1
The student pilot’s failure to maintain clearance from power lines during takeoff.\r 1
The pilot’s exceedance of the wing’s critical angle of attack, which resulted in a stall and impact with terrain. \r 1
The pilot’s failure to maintain directional control during landing with gusting wind. \r 1
The pilot’s failure to maintain lateral control while hovering which resulted in a dynamic rollover. \r 1
The pilot’s failure to maintain control of the airplane while landing.\r 1
The flight instructor’s failure to adequately monitor the student pilot which resulted in an impact with terrain and a nose-over. \r 1
The pilot’s improper brace during landing which resulted in a serious injury during the landing sequence.\r 1
The flight instructor’s failure to adequately correct for a loss of directional control during a simulated single engine approach. \r 1
The pilot’s incorrect positioning of both wing fuel valves, which resulted in a total loss of engine power due to fuel starvation.\r 1
The airplane’s encounter with severe clear air turbulence that was not forecasted, which resulted in a serious injury to an unrestrained passenger. \r 1
An inflight collision with a bird while conducting low level aerobatics. \r 1
The flight crew’s failure to attain a proper touchdown point during landing, which resulted in an overrun of the runway and collision with terrain.\r 1
The pilot receiving instructions failure to maintain directional control during landing. Contributing to the accident was the flight instructor’s delayed remedial action.\r 1
The pilot’s improper flare and inadequate application of power during landing, resulting in a hard landing and substantial damage to the airplane.\r 1
The pilot’s failure to maintain directional control during the takeoff ground roll. \r 1
The loss of engine power due to fuel exhaustion and the pilot’s failure to maintain control of the airplane during a forced landing which resulted in an aerodynamic stall.\r 1
The student pilot’s excessive pitch during takeoff resulted in a loss of control and impact with terrain. Contributing was the student’s failure to relinquish the controls when ordered by the instructor. \r 1
The pilot’s decision to land on an unsuitable surface which resulted in his loss of aircraft control.\r 1
The pilot’s loss of airplane control during takeoff following an encounter with a gust of wind. \r 1
The pilot’s failure to maintain adequate clearance from powerlines.\r 1
A landing gear collapse due to the failure and/or separation of the pin in the right main landing gear.\r 1
Delamination of the uncrewed aircraft systems’ right wing skin surfaces from the wing spar that resulted in a spin and impact with terrain.\r 1
The pilot’s failure to maintain control of the airplane while landing in gusting wind conditions, which resulted in a hard landing and the nose landing gear collapse.\r 1
The pilot’s inadequate flare and subsequent loss of airplane control during landing. \r 1
A loss of engine power for reasons that could not be determined due to a lack of available evidence.\r 1
The student pilot’s improper landing flare and the flight instructor’s delayed remedial response which resulted in an aerodynamic stall.\r 1
The pilot’s inadequate preflight inspection, which resulted in the unlatched engine cowling opening and being struck by a main rotor blade during flight. Contributing to the accident was the mechanic’s failure to properly secure the cowling following maintenance. \r 1
The pilot’s inability to maintain control in high wind conditions while repositioning during a landing attempt, which resulted in a loss of control and collision with terrain. \r 1
The pilot’s failure to maintain directional control in a gusting quartering tailwind that resulted in a loss of control and impact with trees.\r 1
The pilot’s failure to extend the landing gear before landing due to his distraction with the wind gusts.\r 1
The pilot's failure to maintain adequate airspeed during final approach which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall at too low of an altitude to recover.\r 1
An inflight collision with a bird while conducting low level aerobatics.\r 1
The pilot’s loss of control during landing.\r 1
During cruise flight with no reported turbulence a passenger sustained a serious injury for an unknown reason.\r 1
The pilot’s improper landing flare which resulted in a bounced landing and loss of directional control. \r 1
The pilot’s inability to stop the airplane on the available runway, which resulted in a runway excursion and collision with an airport perimeter fence. 1
The pilot’s failure to maintain aircraft control during landing that resulted in an impact with terrain.\r 1
The failure to install the correct fuse in the landing gear circuit. \r 1
The pilot’s selection of unsuitable terrain for landing which resulted in a nose over. \r 1
The pilot’s failure to maintain proper approach glide path, which resulted in a collision with trees. \r 1
The pilot’s failure to maintain clearance from the telephone pole during a low-level aerial application pass.\r 1
The pilot’s failure to maintain directional during the landing rollout in crosswind conditions, which resulted in a runway excursion and impact with terrain. \r 1
The pilot’s failure to retract the flaps during a go-around, which resulted in decreased climb performance and a subsequent collision with trees and terrain. \r 1
The pilot's failure to maintain adequate airspeed during the landing approach, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall at an altitude too low to recover. \r 1
The pilot’s failure to maintain directional control during takeoff. \r 1
The pilot did not ensure clearance from a power line during a surveillance pass of a field to be sprayed.\r 1
The pilot’s failure to attain a proper soft field takeoff pitch attitude during takeoff that resulted in a runway excursion and subsequent impact with a canal.\r\n\r 1
The pilot’s failure to maintain clearance with the edge of the asphalt, which resulted in a runway excursion. Contributing to the accident was the pilot’s distraction due to a goose.\r 1
The pilot’s improper fuel planning during agricultural spraying operations, which resulted in fuel starvation, a loss of engine power, and a hard landing following an autorotation. 1
The pilot's excessive brake application during the landing roll that resulted in a nose over.\r 1
The failure of the right main landing gear brace rib for reasons that could not be determined based on available information. 1
The flight instructor’s inadequate supervision of the student pilot and the student pilot’s loss of directional control during landing, which resulted in a runway excursion. \r\n\r 1
The pilot’s improper landing flare which, resulted in a bounced landing and loss of airplane control during an aborted landing in gusty wind conditions. \r 1
The pilot's failure to maintain a proper glidepath while on final approach to landing which resulted in an impact with a snow berm and a nose over.\r 1
The pilot’s failure to maintain sufficient clearance from the jet blast of a departing jet airplane.\r 1
The flight instructor lost control of the airplane while taxiing in gusty wind conditions.\r 1
The pilot’s failure to extend the landing gear. \r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a runway excursion and impact with terrain. \r 1
The unoccupied airplanes exceedance of the critical angle of attack which resulted in a stall, subsequent inverted spin, and impact with terrain. \r 1
The pilot’s failure to obtain the proper touchdown point during landing, which resulted in a runway overrun and collision with a fence.\r 1
The flight instructor’s delayed remedial action during an unstabilized approach, which resulted in an impact with powerlines and a subsequent loss of control\r 1
The student pilot's improper landing flare and remedial action which resulted in a bounced landing.\r 1
The pilot’s failure to manage fuel, which resulted in a loss of engine power to both engines due to fuel starvation.\r 1
A collision with water following a loss of visual reference to the water surface due to sun glare.\r 1
The pilot’s decision to continue the low-altitude aerial application flight over water conditions that degraded his depth perception, which resulted in an inadvertent collision with the water.\r 1
Pilot’s failure to maintain clearance from a forklift while taxiing.\r 1
A hard landing, which resulted in the failure of the right main landing gear outer bearing and collapse of the landing gear. \r\n\r 1
The pilot’s failure to maintain directional control while attempting to land in a crosswind.\r 1
The pilot’s failure to maintain airspeed and rotor rpm which resulted in a hard landing.\r 1
The pilot’s failure to maintain directional control during landing on a wet surface with a tailwind, which resulted in a runway excursion. \r 1
The student pilot’s application of excessive left brake during the landing roll, resulting in a loss of directional control and a runway excursion. The flight instructor’s inadequate remedial action was a factor in the accident.\r 1
The loss of directional control due to a fractured tailwheel steering linkage assembly.\r 1
Loss of engine power due to the throttle linkage becoming disconnected in flight due to improper maintenance. \r 1
Loss of directional control during landing that resulted in an impact with terrain.\r 1
The pilot’s failure to maintain the proper glidepath, which resulted in a hard landing and landing gear collapse.\r 1
The pilot’s failure to go-around during an unstable approach, which resulted in a hard landing, runway excursion, and nose over. 1
The pilot’s selection of unsuitable terrain for landing and his excessive braking which resulted in a nose-over.\r 1
The pilot’s failure to maintain directional control during landing with a crosswind, which resulted in a collision with a fuel truck and a parked airplane.\r 1
The pilot’s failure to confirm the landing gear was down before landing due to distraction during the Before Landing checks, which resulted in a gear-up landing. \r\n\r 1
The pilot's inadvertent feathering of the propellers during the landing flare, which resulted in a hard landing. A factor in the accident was the instructor's failure to fully monitor the pilot's manipulation of the levers in the airplane's non-standard throttle quadrant.\r 1
The pilot's selection of unsuitable terrain for landing, which resulted in a loss of control during the landing and a nose over. 1
The pilot's decision to continue the unstable approach which resulted in an inadequate flare, bounced landing and collision with trees following a delayed go around. \r\n\r\n \r\n\r 1
The pilot’s failure to maintain airplane control while maneuvering to land which resulted in an aerodynamic stall at a low altitude, which the pilot was unable to recover from. \r 1
The pilot's inability to maintain altitude due to a loss of thermal lift, which resulted in an off-airport landing. 1
The pilot’s failure to maintain the proper descent rate during the balloon’s approach to a high-wind landing, which resulted in a hard landing and serious passenger injury. \r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with vegetation. 1
The pilot did not maintain control of the airplane during the landing.\r 1
The pilot's failure to stow the speed brake prior to attempting takeoff.\r 1
The pilot's failure to maintain directional control during the takeoff, which resulted in a runway excursion and subsequent impact with an obstacle and terrain.\r 1
The pilot's failure to maintain airplane control during a water takeoff after an encounter with the wake from a boat. \r 1
The pilot's inadequate flare, resulting in a hard landing. 1
The pilot’s loss of visual reference during agricultural low-level flight, resulting in collision with power lines.\r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground-loop.\r 1
The pilot's misjudgment of the airplane’s speed and altitude during the landing approach, and his failure to attain the proper touchdown point during landing, which resulted in a runway overrun. Contributing to the accident were his access to a limited set of flight controls, his obstructed vision due to his seating position, and the pilot’s decision to return to the relatively constrained runway following a perceived anomaly of the airplane’s flaps.\r 1
The pilot's decision to attempt a takeoff from the middle of the runway in shifting wind conditions, which resulted in an aborted takeoff and runway excursion. 1
The pilot's improper pitch attitude and landing flare, which resulted in a hard landing. Contributing to the accident was the flight instructors delayed remedial action. 1
The pilot’s failure to maintain altitude on short final due to an encounter with a down draft and the flight instructor's delayed remedial action. \r\n\r 1
The pilot's failure to maintain clearance from a taxiway sign after landing. \r 1
The pilot's failure to maintain directional control of the airplane during landing.\r 1
The student pilot did not maintain control of the airplane during the takeoff roll.\r 1
A runway excursion following an aborted takeoff in tailwind conditions.\r 1
The pilot’s failure to extend the landing gear during the approach and landing.\r 1
The student pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and subsequent impact with trees. \r 1
The pilot’s decision to takeoff in shifting winds from a remote unimproved gravel bar, which resulted in a failure to attain an airspeed suitable for flight and a loss of control. \r 1
The pilot's failure to maintain an airspeed conducive to flight during takeoff. 1
The pilot's failure to complete the pre-landing checklist due to a distraction which resulted in a gear-up landing. 1
The pilot’s delayed decision to initiate a go-around while landing in an unimproved area which resulted in a collision with debris. \r 1
The failure of the No. 4 cylinder exhaust valve that resulted in a partial loss of engine power. Based on available evidence, the reason for the failed valve was not determined.\r 1
The flight instructor’s failure to maintain adequate airspeed during the demonstrated soft-field takeoff, which led to the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall. \r 1
The pilot's decision to takeoff towards known obstacles which resulted in an impact with a power line.\r 1
The pilot's failure to monitor aircraft control, which resulted in a loss of control when a passenger inadvertently moved the control stick, and the pilot and other passenger's decision to unbuckle their restraints inflight.\r 1
The pilot's failure to maintain directional control during takeoff in crosswind conditions, which resulted in a ground loop. 1
The pilot’s improper decision to place a passenger and baggage in the rear baggage compartment, which resulted in an aft center of gravity, an increase in directional instability, and affected the pilot’s ability to maintain directional control, resulting in a ground loop during the landing roll.\r 1
The pilot's failure to maintain directional control during the takeoff, which resulted in a runway excursion and impact with vegetation. \r 1
The pilot's failure to attain the proper landing approach speed and touchdown point, which resulted in a runway overrun.\r 1
The pilot's overapplication of brakes during landing in gusting tailwind conditions, which resulted in a nose-over. 1
The unstabilized landing approach in gusty wind conditions that resulted in a hard, bounced landing.\r 1
The pilot did not remove the rudder gust lock during the preflight inspection, which resulted in a forced landing and collision with a tree. 1
The pilot's misjudgment of the landing flare which resulted in a bounced landing. 1
The pilot's failure to maintain directional control during takeoff with a tailwind, which resulted in a subsequent collapse of the right main landing gear. 1
The balloon pilot’s inability to maintain altitude during un-forecasted weather, which resulted in a hard landing.\r 1
The balloon pilot’s inability to maintain the proper descent rate during the balloon’s approach to landing during un-forecasted weather, which resulted in a hard landing. \r 1
The pilot’s inability to arrest the descent rate when the balloon encountered unforecasted high ground wind that resulted in a hard landing. \r 1
The pilot's excessive speed while landing on a wet grass runway, which resulted in a runway excursion and impact with a fence. 1
The pilot’s distraction and failure to maintain adequate airspeed during a low altitude maneuver, which resulted in a loss of aircraft control and collision with terrain. \r 1
The pilot's failure to maintain directional control during takeoff in crosswind conditions, which resulted in a runway excursion and collision with trees. 1
The pilot's failure to maintain directional control during landing in gusting wind conditions, which resulted in an impact with a large hole and a nose-over.\r 1
The pilot's improper recovery from a bounced landing and failure to maintain directional control, which resulted in a runway excursion and collision with trees.\r 1
Foreign object damage sustained to the main rotor blades due to aerial tree trimming.\r 1
The flight instructor's failure to maintain helicopter control which resulted in a hard landing while preforming a practice autorotation.\r 1
The pilot’s failure to maintain control of the airplane during the simulated power off landing, and the flight instructor's delayed remedial action, which resulted in a loss of control and the airplane’s left wing striking the ground.\r 1
The flight instructor’s inadequate remedial action following the student pilot’s loss of directional control during landing, which resulted in a runway excursion and subsequent nose over.\r 1
The passenger's inadvertent application of the rear brakes during landing, which resulted in a nose-over. 1
The pilot's failure to attain/maintain directional control during landing that resulted in a ground-loop and collision with terrain.\r 1
The flight instructor did not maintain a proper approach path and landing flare during a landing with a tailwind, which resulted in a hard landing and damaged landing gear. During the subsequent landing with damaged landing gear, the flight instructor lost directional control which resulted in a runway excursion and collision with objects. 1
The pilot's failure to maintain clearance from trees during a go-around, which resulted in an impact with terrain. 1
The student pilot misjudged the landing flare which resulted in a loss of control and a hard bounced landing.\r 1
A partial loss of engine power due to the formation of carburetor ice while on the ground, which resulted in reduced climb capability and impact with trees during the initial climb.\r\n \r 1
The student pilot's inadequate decision to make a premature turn onto a taxiway which resulted in a collision with a taxiway sign. 1
The pilot's premature application of brakes during landing, which resulted in a nose-over event. \r 1
The pilot’s inability to regain airplane control after a pilot-induced spin conducted during a flight test, which resulted in a collision with terrain. \r 1
The pilot’s inadequate in-flight planning that resulted in a loss of engine power due to fuel exhaustion. \r 1
The student pilot’s improper landing flare that resulted in a porpoise and collapsed nose landing gear.\r 1
The pilot's failure to ensure that the engine oil cap was installed before takeoff, which resulted in the oil obscuring the pilot’s view through the windshield and necessitated a forced landing on unsuitable terrain. Contributing to the accident were the pilot’s complacency and self-induced pressure to complete the flight.\r\n\r\n\r 1
Pilot's failure to maintain directional control on takeoff. 1
The student pilot’s failure to maintain directional control upon landing.\r 1
The pilot’s improper decision to perform a takeoff from an unsuitable surface, which resulted in a loss of control and nose over.\r 1
The pilot's failure to maintain terrain clearance after flying into the wrong canyon in mountainous terrain which resulted in a collision with trees and terrain. \r 1
The pilot’s failure to maintain clearance from an object during the takeoff ground roll due to inadequate monitoring of the environment. \r 1
The pilot's failure to maintain directional control during landing in gusting winds. \r 1
The flight instructor’s delay in rolling the throttle to the fly position during a practice autorotation maneuver that resulted in a hard landing.\r 1
The student pilot’s failure to maintain control of the airplane during the landing approach and the exceedance of the airplane’s critical angle of attack at low altitude resulting in an aerodynamic stall. Contributing was the instructor pilot’s failure to adequately monitor the student pilot’s actions during the approach.\r\n\r 1
The pilot’s selection of unsuitable terrain for landing, which resulted in a rock damaging the empennage.\r 1
The pilot’s inadequate preflight inspection, during which he failed to ensure the landing gear handle in the “down” position which resulted in the landing gear retracting during takeoff, a loss of directional control, and a runway excursion.\r 1
The pilot's failure to maintain directional control during a crosswind takeoff, which resulted in a collision with airport lights and a sign.\r 1
The pilot’s failure to maintain control of the airplane while taking off in gusting quartering tailwind conditions.\r\n\r 1
The balloon's encounter with unexpected windshear, which resulted in a hard landing and serious passenger injuries.\r 1
The pilot’s decision to land at night without runway lighting, which resulted in a collision with an object.\r 1
The pilot’s failure to maintain directional control during takeoff that resulted in a collision with another glider that was parked close to the departure runway, and the pilot’s improper decision to attempt a takeoff without ensuring he had safe clearance from the parked glider.\r\n\r 1
The pilot’s failure to use full power during takeoff and his delayed decision to abort the takeoff, which resulted in a runway overrun and subsequent impact with terrain. \r 1
The pilot’s inadequate compensation for gusting crosswind conditions while landing, which resulted a loss of lateral control and impact with a fence.\r 1
The pilot’s failure to maintain control of the airplane during landing. \r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing and the nose landing gear collapsing.\r 1
The pilot’s failure to conduct a proper preflight inspection and ensure the fuel was uncontaminated, which resulted in a partial loss of engine power and forced landing.\r 1
The separation failure of a landing gear system hydraulic line and its compression fitting during cruise flight, which resulted in a partial gear up landing.\r 1
A loss of directional control during landing for reasons that could not be determined due to lack of available evidence. \r 1
The pilot’s failure to maintain directional control while landing in gusty, shifting wind conditions. \r 1
The pilot’s failure to maintain helicopter control during an approach with a gusting variable wind, which resulted in an impact with terrain.\r 1
The pilot’s failure to maintain directional control during final approach, which resulted in a collision with trees.\r 1
The pilots improper fuel planning that resulted in a total loss of engine power due to fuel exhaustion. \r 1
Fuel starvation due to a fuel system leak, which resulted in a loss of engine power and the subsequent forced landing on unsuitable terrain. \r 1
The pilot's unstable approach, which resulted in a hard landing, and the separation of the left main landing gear.\r 1
An inadvertent retraction of the flaps during a go-around by the pilot-rated passenger, which caused the airplane to settle onto the runway with the landing gear retracted. \r 1
The pilot’s inadvertent loss of aircraft control, resulting in substantial damage to the airframe during the spin recovery.\r\n\r 1
The pilot’s loss of directional control during takeoff, which resulted in a runway excursion.\r 1
The pilot’s failure to maintain directional control during the landing roll with a gusting wind, which resulted in a runway excursion and impact with a tree. \r 1
The pilot's failure to maintain clearance from a wire during final approach to landing. \r 1
The pilot's loss of directional control during the landing roll.\r 1
The pilot’s failure to maintain adequate airspeed and the exceedance of the airplane’s critical angle of attack during the airplane’s turn to final, resulting in an aerodynamic stall.\r\n\r\n \r 1
The pilot’s excessive application of wheel brakes during the landing roll that caused the airplane to nose over.\r 1
The pilot and owner’s failure to adequately communicate and establish an understanding of who was flying the airplane, and their failure to take timely action to avoid a collision with terrain.\r 1
The student pilot’s improper landing flare, which resulted in a hard, bounced landing and a nose landing gear collapse.\r 1
An inadvertent opening of the airplane’s canopy on takeoff, which resulted in a loss of control and runway excursion.\r 1
The pilot’s misidentification of a corn field for the destination airport’s runway, and a subsequent aerodynamic stall at low altitude while attempting to land.\r 1
The pilot’s loss of control during the landing flare, which resulted in an impact with trees.\r 1
The pilot’s loss of situation awareness which resulted in landing in a grass area and the subsequent collision with a runway marker. \r 1
A collision with a deer while landing at night.\r 1
The pilot’s failure to maintain airplane control during an attempted go-around in gusting wind conditions, which resulted in impact with trees.\r 1
The pilot's failure to maintain clearance from an antenna tower while maneuvering during an agricultural application flight while flying directly toward the sun.\r 1
The pilot's failure to maintain directional control and subsequent exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall and collision with terrain.\r 1
The pilot's failure to maintain directional control of the airplane during a precautionary landing which resulted in a ground loop. 1
A loss of directional control during the landing roll.\r 1
The student pilot's improper landing flare and delayed remedial action to abort the landing, which resulted in a loss of aircraft control, runway excursion and impact with terrain. \r 1
The pilot's inadequate fuel planning, which resulted in a loss of engine power due to fuel exhaustion and a collision with trees and terrain. \r 1
The pilot’s loss of directional control during landing, which resulted in a runway excursion and impact with terrain. \r 1
The pilot’s failure to maintain airplane control during a go-around from unsuitable terrain. \r 1
The pilot’s improper approach airspeed and landing flare, which resulted in a hard, bounced landing and nose over. \r 1
The student pilot’s improper landing flare, which resulted in a hard bounced landing.\r 1
The pilot’s excessive airspeed during landing and improper application of the brakes, which resulted in a runway overrun. \r 1
A total loss of engine power due to a fatigue failure in a cylinder, and the pilot’s subsequent failure to maintain airspeed and her exceedance of the airplane’s critical angle-of-attack while maneuvering at low altitude.\r 1
The solo student pilot's improper landing flare, which resulted in a bounced landing and his subsequent improper go-around, which resulted in an impact with terrain. \r 1
The pilot's failure to maintain clearance from a tree while conducting an external load operation.\r 1
The pilot’s decision to initiate a right turn immediately after departure and his failure to maintain a proper crosswind correction, which resulted in a collision with terrain. \r 1
The pilot's failure to manage the available fuel supply which resulted in fuel starvation and a total loss of engine power.\r 1
The pilot’s failure to maintain control of the helicopter during takeoff. \r 1
The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and collision with terrain. \r 1
The pilot’s failure to retract the landing gear during a water landing, which resulted in a nose over. Contributing to the accident was the pilot’s failure to properly use a prelanding checklist. \r 1
The pilot's improper decision to depart from an off-airport surface that had standing water, which resulted in a loss of control and impact with terrain.\r 1
The pilot’s failure to maintain directional control during landing, which resulted in a ground loop, and the failure of both pilots to establish who was in control of the airplane.\r 1
The loss of engine power due to a stuck intake valve.\r 1
The pilot's failure to maintain adequate clearance from a fence while hovering.\r 1
The pilot's inadequate assessment of the landing area, which resulted in the airplane's encounter with tall weeds during landing and a subsequent nose-over. 1
The pilot's inadequate preflight and inflight fuel planning, which resulted in fuel exhaustion. 1
The pilot’s failure to maintain directional control during landing roll in crosswind conditions.\r 1
The student pilot's improper landing flare, and failure to recover from the ensuing bounced landing, which resulted in a subsequent nose landing gear collapse. 1
The uncertificated pilot's failure to attain/maintain a proper angle-of-attack during an initial climb that resulted in an aerodynamic stall and subsequent impact with terrain.\r 1
The pilot’s failure to maintain adequate airspeed while on final approach in turbulent conditions, which resulted in an aerodynamic stall and subsequent hard landing.\r 1
The pilot's failure to maintain directional control during takeoff, which resulted in a runway excursion, contact with the airport perimeter fence, and subsequent nose over. \r 1
The pilot's improper approach airspeed and landing flare, which resulted in a bounced landing, and subsequent nose over. \r 1
The pilot's failure to maintain directional control during the landing roll. The pilot being fatigued likely contributed to his failure to maintain directional control during the landing roll.\r 1
The pilot's failure to maintain clearance from a fence post during the initial climb.\r 1
The pilot's hard landing on the airplane's nosewheel, which jammed the steering, and resulted in a runway excursion and impact with runway lights. 1
The pilot's failure to perform a go around following a bounced landing that resulted in an aerodynamic stall.\r\n\r 1
The pilot's failure to properly configure the airplane for takeoff, which resulted in the exceedance of the airplane's critical angle of attack, an aerodynamic stall, and subsequent impact with terrain. 1
The reported malfunction of the aileron flight control system during takeoff for reasons that could not be determined.\r 1
The pilot's failure to ensure that the amphibious airplane’s wheels were retracted before attempting a water landing, resulting in a nose over during touch down. Contributing to the accident was the lack of a checklist available to the pilot.\r 1
The pilot's failure to maintain directional control during the landing rollout, which resulted in a ground loop. \r 1
The pilot's loss of airplane control during the approach, which resulted in an aerodynamic stall and impact with vegetation and terrain.\r 1
The pilot’s loss of directional control while landing in gusting crosswind conditions, which resulted in a runway excursion and collision with a ditch.\r 1
The pilot's failure to maintain directional control during takeoff which resulted in a collision with a runway marker. \r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing, and substantial damage to the airplane’s fuselage.\r 1
The pilot's distraction while taxiing, which resulted in a taxiway excursion.\r 1
The student pilot's improper landing flare and failure to recover from the ensuing bounced landing, which resulted in a runway excursion. 1
The pilot's decision to land on a shortened field and his incorrect brake application. Contributing was the flight instructor's lack of oversight.\r 1
The student pilot’s failure to ensure sufficient fuel onboard, which resulted in a total loss of engine power due to fuel exhaustion, which resulted in impact with terrain. \r\n\r 1
The flight instructor's delayed remedial action during a simulated engine failure on takeoff, which resulted in a loss of directional control. 1
The pilot's improper decision to depart from an unsuitable off-airport surface which resulted in a departure area excursion and impact with trees. 1
The pilot's loss of control of the airplane during a water landing after striking a boat wake, which resulted in substantial damage to the fuselage. 1
The pilot's failure to maintain airplane control during landing with a crosswind and excessive braking action, which resulted in the airplane nosing over. \r 1
The student pilot's decision to continue from visual flight into instrument meteorological conditions, which resulted in a collision with trees and mountainous terrain.\r 1
The pilot’s failure to maintain directional control during landing, which resulted in the airplane exiting the runway and striking a ditch.\r 1
The student pilot's improper landing flare and improper recovery from a bounced landing in gusty wind conditions, which resulted in a hard landing.\r 1
The pilot's failure to remove the seat belt used as a flight control lock from the aft cockpit control stick before takeoff, which resulted in a loss of control during takeoff and collision with terrain.\r 1
The pilot's incorrect flight control input during the landing flare, which resulted in an impact with the ground.\r\n\r 1
The pilot's failure to maintain adequate clearance from a parked airplane while taxiing. Contributing to the accident was the parked airplane's position over the double-yellow taxiway edge lines and into the taxiway object-free movement area. 1
The pilot’s decision to attempt the takeoff with a tailwind in high density altitude conditions.\r 1
A loss of directional control as a result of a fractured landing gear attach bracket. 1
The pilot's failure to maintain proper glide path during final approach which resulted in a collision with airport equipment short of the runway.\r 1
The pilot's improper approach and descent rate, which resulted in a hard landing. 1
The flight instructor's delayed remedial action, which resulted in a hard landing and loss of directional control while landing with a crosswind.\r\n\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and collision with a fence.The pilot's inadequate flare that resulted in a bounced landing, and his failure to maintain directional control that resulted in a runway excursion and collision with a fence. \r 1
The mechanic’s failure to clean the oil suction screen during the most recent maintenance, which resulted in oil starvation and subsequent total loss of engine power. \r 1
The pilot's failure to maintain clearance from power lines while maneuvering during an aerial application flight, which resulted in a wire strike.\r 1
The pilot's failure to maintain the proper airspeed during a low altitude aerial application maneuver and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodymanic stall at too low of an altiutde to recover.\r 1
The pilot's improper flare, which resulted in a hard, bounced landing.\r\n\r 1
The student pilot's improper landing flare, which resulted a hard, bounced landing.\r\n\r 1
A loss of directional control on takeoff, which resulted in a runway excursion and collision with trees.\r 1
The pilot's improper decision to conduct an off-field precautionary landing.\r\n\r 1
The pilot's failure to maintain airspeed while landing with a quartering tailwind, which resulted in a loss of control and a hard landing.\r 1
The pilot's failure to maintain control of the airplane during the landing approach, which resulted in the airplane exceeding its critical angle of attack, an aerodynamic stall, hard landing, and a landing gear collapse.\r 1
The pilot’s failure to maintain directional control while landing with a crosswind, which resulted in a runway excursion and nose landing gear collapse.\r 1
The pilot's failure to maintain clearance from a fence post during final approach which resulted in a damage to the left main landing gear, and its subsequent collapse during landing. \r 1
The pilot's failure to extend the airplane’s retractable landing gear before landing.\r 1
The pilot's inadequate preflight inspection of the powered parachute, which resulted in his takeoff with twisted riser lines and impaired aircraft control.\r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing and the nose landing gear collapse during a gusty landing.\r 1
The pilot's failure to maintain adequate clearance from the rice vegetation, which resulted in the helicopter's impact with terrain.\r 1
The pilot's inadequate planning, and his failure to secure the airplane prior to hand-starting the engine. \r 1
The pilot’s failure to maintain directional control and the flight instructor's inadequate remedial action during the landing roll, which resulted in a ground loop.\r 1
The pilot's improper landing flare which resulted in a hard, bounced landing, and subsequent runway excursion. Contributing to the accident was the airplane’s aft center of gravity at the time of the accident.\r 1
The pilot's failure to maintain airplane control during landing in gusting wind conditions.\r\n\r 1
The pilot's improper approach, which resulted in a long landing and a runway overrun. 1
The loss of directional control during landing due to the fracture of the steering horn bolts, which rendered the nosewheel steering ineffective and resulted from the airplane being towed over the left turn limits at an undetermined time before the accident.\r 1
The pilot's improper landing flare, which resulted in a bounced, hard landing and subsequent runway overrun. \r 1
A loss of engine power due to water contamination in the fuel system. Contributing to the accident was the pilot’s inadequate preflight to sump the fuel tanks prior to flight. \r\n\r 1
The pilot's decision to land at an unimproved airstrip with limited go-around capabilities, his improper landing flare and aborted landing, and his subsequent failure to attain sufficient altitude to clear vegetation during an attempted go-around.\r 1
The pilot's failure to maintain directional control during landing resulting in a ground loop. 1
The pilot's failure to maintain directional during landing on a wet grass runway.\r 1
The pilot's failure to retract the amphibious airplane’s landing gear prior to the water landing, which resulted in a nose over.\r 1
The pilot's failure to see and avoid the boat's mast, which resulted in a main rotor blade strike. Contributing to the accident was the pilot's inadequate preflight planning by not having the boat's mast measured. 1
The pilot's failure to maintain airplane control during landing resulting in a nose over.\r 1
The pilots did not maintain directional control of the airplane during landing.\r 1
An inadequate flare which resulted in a bounced landing and the pilot's failure to maintain directional control. 1
The loss of engine power due to fuel starvation 1
The pilot's failure to maintain directional control during a forced landing with a quartering tailwind, following a partial loss of engine power due to carburetor icing. 1
The pilot's improper landing flare, which resulted in a bounced landing and subsequent main landing gear collapse.\r 1
A hard landing and subsequent loss of control.\r 1
The pilot’s inadequate compensation for a wind gust during landing.\r 1
The pilot's failure to attain/maintain directional control during landing that resulted in a ground loop and impact with terrain. 1
The pilot did not maintain clearance from wires during an aerial application flight.\r 1
The pilot's over application of brakes during taxi, which resulted in a nose over. \r 1
The pilot’s application of the left brake during landing resulting in a runway excursion.\r 1
The pilot's loss of directional control while landing a tailwheel airplane with a slight left quartering a tailwind. Contributing to the accident was the flight instructor's delayed remedial action.\r 1
The pilot did not maintain control of the airplane during the landing and subsequent go around.\r 1
The pilot's failure to adequately monitor his fuel quantity during flight, which resulted in fuel exhaustion and a total loss of engine power.\r 1
The pilot's improper pitch attitude during the soft-field landing roll, which resulted in the tail striking the runway. 1
The pilot's failure to maintain adequate clearance from a known obstacle while landing from a hover.\r 1
The failure of the right main landing gear to extend prior to landing, which could not be duplicated during postaccident tests. \r 1
The pilot's failure to maintain control of the airplane during a low-level pass, resulting in the airplane exceeding its critical angle of attack that caused an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilot's distraction during the low-level pass. 1
The pilot's inadequate preflight performance planning and his decision not to utilize all available runway during high density altitude operations which led to an inflight loss of control and subsequent collision with terrain.\r 1
The pilot's exceedance of the airplane's critical angle of attack while attempting to avoid a deer during landing, resulting in an aerodynamic stall.\r\n\r 1
The pilot’s failure to maintain control of the airplane during the attempted engine start.\r 1
The pilot's failure to maintain clearance while attempting to fly under power lines during an aerial application pass. 1
The pilot’s failure to maintain clearance from guy-wires during low-altitude agricultural operations.\r 1
The pilot’s failure to maintain main rotor clearance from a ground obstacle during a landing.\r 1
The pilot's loss of control during landing, which resulted in a ground loop and left main landing gear collapse. \r\n\r 1
The pilot's failure to attain a proper approach speed, which resulted in an overrun of the wet grass runway.\r 1
Excessive wear of the left brake liners which reduced brake effectiveness resulting in a runway excursion.\r 1
The crew leader's decision to throw a chainsaw bar into the moving arc of the main rotor blade. 1
The pilot's inability to maintain a climb after an attempted takeoff in high density altitude conditions, which resulted in a forced landing on a road and subsequent landing gear collapse. \r 1
The pilot's failure to initiate a climb in a timely manner which resulted in contact with wires. 1
The pilot's failure to maintain a proper glide path, which resulted in landing short of the runway, the airplane’s landing gear contacting the runway lip, and substantial damage to the airplane’s right wing. \r\n\r 1
The student pilot's failure improper landing flare, which resulted in a hard landing.\r 1
The commercial pilot's exceedance of the airplane's critical angle of attack and subsequent loss of lateral bank control during a soft field takeoff. \r\n\r 1
The pilot's failure to maintain directional control of the airplane while landing in gusting wind conditions, which resulted in a runway excursion and collision with a fence.\r 1
The left seated flight instructor’s improper manipulation of the landing gear position selection lever to the up position while still on the landing roll, which ultimately resulted in a landing gear collapse during a subsequent landing. \r 1
The pilot's distraction during takeoff, which resulted in collision with terrain.\r 1
The pilot's failure to maintain airplane control during a go-around that resulted in the airplane exceeding its critical angle of attack and aerodynamically stalling which resulted in a collision with the ground. 1
The pilot's delayed decision to abort the takeoff roll, which resulted in a runway overrun and airplane nose over. \r 1
The student pilot's improper landing flare, which resulted in a hard landing on the nosegear and nosegear collapse. 1
The solo student pilot's improper landing flare, which resulted in a bounced landing and subsequent nose over.\r\n\r\n\r\n\r 1
The pilot’s failure to maintain directional control on landing resulting in a runway excursion and subsequent ground loop. Contributing to the outcome were the flight instructor’s inadequate remedial actions.\r 1
The PA-32 pilot's failure to see and avoid the other airplane.\r 1
The flight instructor and student pilot did not properly transfer airplane control during ground rollout, which resulted in the airplane exiting the runway and impacting a ditch. 1
The pilot's failure to maintain airplane control during takeoff in high density altitude conditions, which resulted in a collision with terrain. Contributing to the accident was the pilot's failure to accomplish performance calculations for the atmospheric conditions. \r\n\r 1
The pilot’s inadequate inflight planning that resulted in a loss of engine power due to fuel exhaustion.\r 1
The student pilot's improper landing flare and improper recovery from a bounced landing, which resulted in a hard landing.\r 1
The flight instructor’s failure to maintain control of the airplane following an unannounced transfer of flight control during takeoff. \r 1
The pilot's failure to maintain directional control during a soft field takeoff on a dirt airstrip, which resulted in an impact with a vehicle. 1
The student pilot's failure to maintain airplane control when the airplane drifted off of runway centerline and subsequently collided with a taxiway sign during a go-around. 1
The pilot's inability to arrest a descent rate or maintain altitude after encountering a downdraft while maneuvering at low altitude near mountainous terrain that resulted in a hard landing. 1
The encounter with the downdrafts during the attempted takeoff, which resulted in decreased airplane's climb performance and subsequent impact with terrain. 1
The pilot's decision to land with excessive approach airspeed, which resulted in the airplane landing long, the application of additional braking action to stop and subsequent nose over. \r 1
The mechanic’s incorrect rigging of the aileron control cables, which resulted in a reversal of aileron control inputs applied by the pilot during the takeoff. Also causal was the mechanic’s inadequate post-maintenance inspection and the pilot's inadequate preflight inspection and before takeoff check, which failed to detect the misrigging.\r 1
The pilot's failure to maintain directional control during a crosswind landing, which resulted in a nose over. 1
The pilot's failure to maintain airplane control during landing in gusting wind conditions, and the flight instructor's delayed remedial action, which resulted in the left wing striking the runway. 1
The pilot's failure to maintain proper approach speed and descent path to the runway, which resulted in excessive speed at touchdown and insufficient runway remaining to safely bring the airplane to a stop before the end of the runway. Contributing to the accident was the airplane's diminished braking due to the dew-covered grass runway condition. 1
The pilot’s decision to depart from a non-suitable surface, which resulted in a loss of directional control during takeoff roll.\r 1
The pilot’s failure to maintain directional control during a nighttime landing with a crosswind, which resulted in a runway excursion and impact with a sign.\r 1
The pilot’s improper control input during a bounced landing that resulted in the glider impacting terrain. \r 1
The pilot’s failure to maintain proper airspeed on approach and his attempt to land on a wet runway with insufficient runway remaining, resulting in an overrun and loss of directional control.\r\n\r 1
The pilot’s decision to operate with a demonstrated crosswind velocity above the airplane’s performance capabilities which resulted in a loss of airplane control and collision with terrain.\r 1
The total loss of engine power for undetermined reasons and the pilot’s failure to maintain clearance from the trees during the subsequent forced landing resulting in an impact with trees and terrain. \r\n\r 1
The pilot’s improper decision to approach the airport and enter a low altitude hover with a gusting quartering tailwind, which resulted in a loss of tail rotor effectiveness during a turn at a low altitude.\r 1
The pilot’s failure to maintain clearance from a power line during low-level maneuvering. \r 1
The pilot’s distraction in the cockpit which interrupted his pre-landing checklist which resulted in his failure to configure the landing gear prior to touchdown. \r 1
The pilot’s inadequate compensation for gusty wind conditions, which resulted in a hard landing. The rough terrain of the runway also contributed to the outcome.\r 1
The pilot’s failure to maintain directional control during landing, which resulted in a ground loop.\r 1
The pilot’s failure to maintain airspeed and exceedance of the airplane’s critical angle of attack during short final approach, which resulted in an aerodynamic stall at low altitude.\r 1
The pilot’s failure to maintain directional control on landing.\r\n\r 1
The pilot’s selection of an unsuitable landing surface. \r 1
The pilot's improper landing flare, which resulted in an initial hard landing, separation of the left main landing gear, and a runway excursion during a subsequent landing attempt.\r 1
The pilot’s selection of unsuitable terrain for taxi, which resulted in the airplane encountering a crevasse. \r 1
The student pilot’s improper flare while landing with a gusting crosswind which resulted in a hard landing and separation of the left landing gear.\r 1
The pilot did not maintain clearance from a powerline during an aerial application flight.\r\n\r\n\r 1
The pilot’s failure to maintain directional control during landing with a crosswind.\r\n\r\n\r 1
The pilot’s failure to maintain directional control during landing that resulted in a ground loop and impact with terrain.\r\n\r\n\r 1
The pilot’s failure to maintain directional control during takeoff in gusty tailwind conditions, which resulted in a runway excursion and nose down. \r 1
The pilot’s failure to maintain directional control in gusting crosswind conditions. \r 1
The failure of the pilot to maintain directional control of the airplane during the landing roll which resulted in a runway excursion and subsequent nose over. \r\n \r 1
The pilot’s improper landing flare, which resulted in a hard landing, overstress fracture of components of the left main landing gear, and subsequent runway excursion.\r 1
The pilot's failure to maintain directional control during a landing, which resulted in a ground loop and subsequent nose over. \r 1
The pilot’s improper landing flare, which resulted in a bounced landing, and a subsequent runway excursion. Also causal was the flight instructor’s delayed remedial action.\r 1
The uncertified pilot’s failure to maintain control of the helicopter when encountering a wind gust while hovering to land.\r\n\r\n\r 1
The pilot's loss of directional control while landing in a crosswind, which resulted in a ground loop.\r 1
The pilot’s failure to maintain obstacle clearance during takeoff, which resulted in a collision with a cactus and impact with terrain.\r 1
The pilot’s failure to maintain directional control during the landing roll with a tailwind, which resulted in a landing gear collapse and collision with terrain. \r 1
The pilot’s decision to takeoff with known obstacles on the runway and his subsequent failure to avoid the windsock on takeoff.\r 1
The pilot’s failure to maintain clearance from powerlines during low-altitude maneuvering. \r 1
The pilot’s mismanagement of the available fuel, which resulted in a total loss on engine power due to fuel starvation.\r 1
The pilot’s delayed use of carburetor heat, which resulted in carburetor icing and a subsequent total loss of engine power.\r 1
The pilot’s failure to maintain directional control during the landing in a crosswind condition, which resulted in a runway excursion.\r 1
The pilot under instruction’s improper landing flare and attempted go-around which resulted in an aerodynamic stall, and subsequent loss of control. Contributing to the accident was the flight instructor’s delayed remedial action.\r 1
The pilot’s failure to maintain directional control during landing that resulted in a runway excursion and impact with terrain.\r 1
The pilot’s failure to maintain control of the airplane during takeoff, which resulted in an aerodynamic stall and impact with terrain. Also causal was the flight instructor’s inadequate remedial action. \r 1
The pilot's uncoordinated flight control inputs while entering a hover, which lead to a loss of aircraft control which resulted in the left skid making contact with the ground, causing the helicopter to roll on its side. \r 1
A total loss of power for reasons that could not be determined, as the airplane was not recovered from the water following the ditching.\r 1
The pilot’s loss of situational awareness while landing, resulting in an impact with power lines.\r 1
The pilot’s improper recovery from a bounced landing, which resulted in a subsequent hard landing and a runway excursion.\r 1
The pilot’s failure to retract the landing gear on the amphibious airplane prior to a water landing, resulting in a nose over and structural damage to the airframe. The mechanic’s failure to remove electrical tape from the pitot tube, the pilot’s inadequate preflight inspection, and the pilot’s failure to visually confirm the landing gear position prior to touchdown were all factors in the accident.\r 1
The pilot’s failure to maintain aircraft control during the landing roll on an unimproved snow-covered runway which resulted in a nose-over.\r 1
The instructor pilot’s selection of an unsuitable snow-covered runway for landing practice, and the pilot under instruction’s failure to maintain directional control during a landing roll, which resulted in a loss of control in unpacked snow and a subsequent nose-over. \r 1
The examiner’s failure to arrest the helicopter descent during a simulated engine failure maneuver and the flight instructor’s inadequate remedial action, which resulted in a hard landing.\r 1
The pilot's failure to maintain directional control during landing in a gusting crosswind, which resulted in a loss of control and runway excursion.\r 1
The pilot’s failure to maintain directional control of the airplane, and the flight instructor’s inadequate oversight during a simulated engine out takeoff that resulted in a runway excursion and impact with a snowbank.\r\n \r 1
The flight instructor’s improper soft field landing technique while landing on a turf runway, which resulted in a nose over. \r 1
The fatigue fracture and liberation of two airfoils from a low pressure turbine stage 5 nozzle segment that impacted and damaged the downstream low pressure stage 5 blades creating an initial imbalance load in the engine’s low pressure turbine rotor sufficient to allow all the low pressure turbine blades to lose radial blade clearance, contact static structure, and to fracture transversely across the airfoil. The progressive failure of the low pressure rotor caused an increasingly imbalanced load that eventually resulted in the fracture of the oil supply tube that allowed oil to contact hot engine parts and smolder and ignite resulting in the undercowl fire.\r 1
The pilot’s failure to maintain directional control of the helicopter, which resulted in rear portion of the right skid contacting the ground and a subsequent dynamic rollover.\r 1
The pilot’s failure to maintain lateral control and terrain clearance while hovering, which resulted in a dynamic rollover.\r 1
The pilot’s failure to maintain clearance from terrain during a low approach over a snow-covered runway. Contributing to the accident was the loss of depth perception due to the bright sunlight and snow. \r 1
The pilot’s loss of directional control during landing in gusting wind conditions, which resulted in a runway excursion and nose over.\r 1
The student pilot’s loss of directional control during landing which resulted in an impact with a snowbank. The slippery runway condition contributed to the accident.\r 1
The student pilot’s improper recovery from a bounced landing.\r 1
The pilot’s improper pitch attitude for landing and the inadequate supervision of the flight instructor, resulted in the main rotor blades impacting the tail boom. \r 1
The pilot’s failure to maintain directional control during the takeoff roll, which resulted in a ground loop, runway excursion and collision with terrain.\r 1
The pilot’s failure to maintain directional control of the airplane during the takeoff roll following a hard landing. 1
The pilot’s failure to ensure that the aft seat cushion was adequately secured, which resulted in its movement, subsequent interference with the flight controls, and a hard landing.\r 1
The student pilot’s loss of directional control during takeoff, which resulted in the collision with a snowbank. Contributing to the accident was the compacted snow conditions on the runway surface.\r 1
The helicopter’s impact with an object on departure that could not be determined.\r 1
The pilot’s selection of unsuitable terrain for landing, which resulted in the airplane encountering deep snow and coming to rest inverted. \r 1
The pilot’s failure to maintain airplane control during takeoff while operating in gusting wind conditions, which resulted in a collision with a cactus and the subsequent impact with terrain.\r 1
The pilot’s improper landing flare that resulted in a bounced touch and go landing and subsequent nose wheel separation.\r 1
The pilot’s loss of directional control during the back-taxi for departure in strong crosswind conditions which resulted in a runway excursion. Contributing to the accident was the snow-and-ice-covered runway. \r 1
The pilot's failure to maintain aircraft control while maneuvering with a tailwind, resulting in the helicopter spinning and colliding with terrain.\r 1
The airplane’s impact with a deer during takeoff. \r\n\r 1
The pilot’s failure to maintain directional control during the landing roll in gusting wind conditions, which resulted in a runway excursion and impact with terrain. \r 1
The pilot's failure to maintain adequate clearance from trees while maneuvering in the traffic pattern. \r 1
The uncertificated pilot’s failure to maintain control of the powered parachute during low altitude flight in gusting wind conditions.\r\n\r\n\r 1
The pilot’s failure to maintain control of the airplane after it struck a hidden berm during the intentional off-airport landing, which resulted in a hard landing.\r 1
The pilot’s failure to maintain directional control during the landing, which resulted in a runway excursion and subsequent noseover. \r 1
The student pilot’s improper recovery from a bounced landing, which resulted in a hard landing.\r 1
The pilot’s failure to maintain directional control during the rejected takeoff with a left quartering crosswind that shifted to a tailwind.\r\n\r 1
The pilot’s selection of unsuitable terrain for landing, which resulted in a landing gear collapse.\r 1
The flying pilot’s failure to configure the flaps for a short field takeoff and delayed decision to abort the takeoff, which resulted in a runway overrun. \r 1
The pilot’s failure to maintain directional control while landing in a gusty crosswind, which resulted in a ground loop.\r 1
The pilot’s decision to abort the takeoff on encountering a wind gust and his landing beyond the end of the runway that resulted in the airplane impacting a ditch collapsing the nose landing gear. \r\n\r 1
A total loss of engine power during climb for reasons that could not be determined which resulted in a forced water landing. \r 1
An unanticipated encounter with a deer shortly after touchdown, resulting in a collision and substantial damage to the airframe.\r 1
The pilot’s loss of situational awareness and failure to touchdown on the runway which resulted in a collision with the airport’s perimeter fence.\r 1
The student pilot’s inadequate flare resulting in a loss of control during landing with a crosswind and subsequent nose over.\r 1
The pilot's failure to maintain directional control during taxiing in crosswind conditions, which resulted in the airplane nosing over.\r 1
A loss of control during landing for reasons that could not be determined based on the available evidence. \r 1
The pilot’s failure to maintain airplane control while compensating for a downdraft during landing, which resulted in the airplane touching down short of the runway on soft terrain and nosing over.\r 1
The pilot’s failure to visually inspect the runway condition before landing, which resulted in a collision with an ice chunk and main landing gear separation during landing. \r 1
The pilot's inadequate preflight inspection and fuel planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion.\r\n\r\n\r 1
The pilot’s loss of directional control due to a blown tire, which resulted in a runway excursion and impact with terrain. \r 1
The pilot’s failure to control the pitch attitude of the gyroplane during landing, which resulted in a loss of control, runway excursion and collision with terrain. \r 1
The pilot's failure to maintain directional control during the landing roll with a crosswind.\r 1
Water contamination of the airplane’s fuel supply which resulted in a total loss of engine power.\r\n\r 1
The pilot’s failure to maintain directional control during landing that resulted in a runway excursion and collision with a pole.\r\n\r\n\r 1
The pilot’s failure to maintain airplane control during takeoff with a quartering right tailwind. \r 1
The pilot’s failure to properly control the balloon during a steep approach that resulted in a hard landing and a serious passenger injury.\r\n\r\n\r 1
The pilot’s loss of directional control while dragging the surface of an ice- and snow-covered lake in gusting wind conditions, which resulted in an impact with a tree. \r 1
The student pilot’s failure to maintain control during takeoff in gusty wind conditions and the flight instructor’s delayed remedial action, which resulted in the airplane colliding with trees and subsequently the ground. \r\n\r\n\r 1
An inadvertent collision with a bird during descent, resulting in substantial damage to the vertical stabilizer.\r 1
The pilot’s failure to maintain control of the airplane during the landing roll with gusting crosswinds, which resulted in his excessive brake input and a subsequent nose over. \r\n\r\n\r 1
The student pilot’s improper landing flare which resulted in a hard landing, loss of directional control and subsequent nose over. \r 1
The pilot’s loss of situational awareness, and his unintended landing on a soft unimproved dirt road, which resulted in a loss of directional control into soft ground and the airplane to subsequently nose over. \r\n\r\n\r\n\r 1
The pilot’s failure to maintain clearance from power lines during power line maintenance. \r 1
The flight instructor’s delayed remedial action and failure to maintain directional control during a crosswind landing, which resulted in a runway excursion.\r 1
The pilot’s failure to maintain directional control during a full-stop landing, resulting in a runway excursion and impact with a snow berm.\r\n\r\n\r 1
The pilot’s improper landing flare, which resulted in a loss of directional control, runway excursion and impact with terrain.\r 1
The pilot’s failure to maintain directional control during takeoff and the instructor pilot’s inadequate supervision of the pilot’s takeoff.\r\n\r\n\r 1
The pilot’s unstable approach, and improper landing flare, which resulted in a bounced landing and subsequent nose over.\r 1
The pilot’s failure to maintain airplane control during initial climb with a crosswind when the airspeed decreased, the airplane exceeded its critical angle of attack and aerodynamical stalled at too low an altitude for the pilot to recover before the airplane descended and landed hard. \r 1
The failure of the alternator control unit housing plug connection, which resulted in insufficient battery power to fully extend the landing gear. Contributing to the accident was the pilot’s decision to not use the emergency gear extension handle to secure the gear prior to landing. \r 1
The malfunction of the balloon’s envelope venting system during landing in high wind, which resulted in the balloon being dragged along the ground, substantially damaging the envelope. \r\n\r\n\r 1
The pilot's misidentification of the airport’s active runway, which resulted in an off runway landing and a collision with a snow berm. Contributing to the accident was the runway’s lack of identifying markings. \r 1
The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and impact with airport lights and a hangar.\r 1
The pilot’s failure to extend the landing gear during approach, which resulted in a gear up landing.\r 1
The pilot’s failure to control the airplane during the landing flare, which resulted in a hard landing.\r\n\r\n\r 1
A fire that originated in the right main landing gear brake assembly for reasons that could not be determined based on the available information.\r 1
The pilot’s failure to maintain control of the airplane, which resulted in an exceedance of the airplane’s critical angle of attack, and a subsequent aerodynamic stall.\r 1
The pilot’s failure to maintain directional control while turning onto the taxiway in variable wind conditions.\r\n\r\n\r\n\r 1
The student pilot’s improper flare which resulted in a bounced, hard landing and loss of control in a gusting crosswind. \r 1
The pilot’s improper recovery from a bounced landing, which resulted in a subsequent hard landing and a nose landing gear collapse.\r 1
The pilot failure to maintain directional control of the helicopter when it encountered an unanticipated wind allowing it to drift into a fence and subsequently roll over and impact terrain. \r\n\r\n\r 1
The pilot's failure to maintain directional control during the landing roll with a light crosswind, which resulted in a runway excursion and collision with terrain. \r 1
The student pilot's improper landing flare which resulted in a bounced landing, loss of airplane control and subsequent collision with terrain. \r 1
The pilot’s failure to maintain control of the airplane during a full stop landing and the subsequent attempted go-around in turbulent conditions.\r\n\r 1
The pilot’s improper recovery from a bounced landing, which resulted in a subsequent hard landing.\r 1
The pilot's failure to maintain directional control while landing in gusting wind conditions, which resulted in a ground loop. \r 1
The pilot’s inadequate fuel management which resulted in the loss of engine power due to fuel starvation. \r 1
The pilot’s inadequate engine hand propping procedure which resulted in the airplane’s unexpected movement and subsequent impact with a fueling station. \r 1
The pilot’s inadequate prefight inspection, during which he failed to detect water contamination in the fuel system, which resulted in a total loss of engine power.\r 1
The pilot’s improper decision to attempt a takeoff with a quartering tailwind and his failure to reject the takeoff in a timely manner, which resulted in a runway excursion.\r 1
The student pilot’s inadequate compensation for a crosswind during landing, which resulted in a loss of directional control and a runway excursion.\r 1
A total loss of engine power as a result of the loose fuel line B-nut connected to the engine driven fuel pump. \r 1
The pilot’s unstable approach to land, which resulted in a loss of directional control and subsequent nose over. Contributing to the accident was the pilot’s decision to continue an approach in sun glare conditions. \r 1
The pilot’s failure to maintain directional control during the landing roll, which resulted in a runway excursion and subsequent nose over. \r 1
An encounter with severe turbulence, which resulted in serious injury to an unseated passenger.\r 1
The pilot’s failure to maintain directional control during a touch-and-go landing.\r 1
The pilot’s failure to maintain adequate clearance from trees during an attempted go-around in gusty crosswinds.\r 1
The pilot’s failure to maintain lateral control during a hover and improper recovery action after the helicopter contacted the ground, which resulted in a dynamic rollover sequence and an impact with terrain. \r 1
The pilot’s failure to maintain clearance from telephone wires while on final approach for landing which resulted in a collision. \r 1
The pilot receiving instruction’s failure to maintain directional control during the landing roll, which resulted in a runway excursion onto soft terrain. Contributing to the accident was the flight instructor's inadequate supervision of the pilot while landing.\r 1
The separation of the control grip which resulted in the pilot’s inability to maintain directional control during takeoff, and collision with terrain. \r 1
The airplane’s impact with a deer during takeoff.\r\n\r 1
The pilot's inadequate preflight inspection and fuel planning which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot’s exceedance of the airplane’s critical angle of attack while landing, which resulted in an aerodynamic stall. \r 1
The pilot failed to maintain control of the airplane during landing.\r 1
The pilot’s failure to determine the airplane’s takeoff performance from an off-airport field which resulted in an aborted takeoff and impact with a fence and terrain. Contributing to the accident was the delayed aborted takeoff. \r 1
The pilot’s failure to extend the landing gear, which resulted in the airplane landing with the landing gear retracted. \r 1
The pilot’s failure to maintain sufficient altitude above terrain while operating in reduced visibility due to snow showers. \r 1
The pilot’s failure to maintain airplane control during landing, which resulted in a nose over. \r 1
The pilot’s failure to properly secure the airplane before beginning the engine start sequence.\r 1
A loss of directional control for reasons that were not determined due to lack of available evidence. \r 1
The pilot’s improper compensation for shifting wind conditions, which resulted in a runway excursion and a subsequent nose over.\r 1
The pilot's failure to maintain directional control during landing, which resulted in the airplane nosing over. \r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall while maneuvering to final approach.\r 1
The pilot’s failure to attain the proper touchdown point which resulted in a runway overrun and collision with trees.\r 1
The pilot’s improper positioning of the fuel selector during takeoff, which was not in accordance with the preflight checklist and resulted in fuel starvation, a subsequent total loss of engine power, and an aerodynamic stall during an attempted forced landing.\r 1
The pilot’s inadequate preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. \r 1
The student pilot’s failure to maintain control of the airplane during landing with a gusting crosswind and his failure to go around and relinquish control of the airplane when directed by the instructor pilot.\r\n\r 1
The failure of both pilots of each glider to see an avoid one another while maneuvering, which resulted in a mid-air collision. \r 1
The pilot landed the helicopter on unsuitable terrain, which resulted in a rollover.\r 1
The pilot's loss of helicopter control after entry into vortex ring state, which resulted in main rotor blade contact with the tailboom, and impact with the ground.\r 1
The pilot’s failure to maintain directional control during takeoff with a crosswind that resulted in a ground loop and impact with terrain.\r 1
The pilot’s failure to maintain directional control during landing, resulting in a ground loop and structural damage to the airframe.\r 1
The pilot’s failure to maintain clearance with a vehicle while taxiing. \r 1
The pilot’s failure to maintain helicopter control while hovering low over a body a water while facing into the sun, which resulted in a loss of visual reference and subsequent impact with the lake surface. \r 1
The pilot’s inadequate preflight inspection and inflight planning that resulted in a total loss of engine power due to fuel exhaustion. \r 1
The airplane’s encounter with a downdraft during the initial climb, which resulted in an impact with trees.\r 1
The student pilot’s improper decision-making, which resulted in a total loss of engine power due to fuel starvation.\r\n\r 1
The airplane’s collision with a deer on the runway during takeoff at night. \r 1
The failure of the left landing gear airframe cross tube during landing, due to corrosion hidden under riveted fairing.\r 1
The pilot’s improper landing flare which resulted in a bounced landing, loss of directional control and subsequent collision with a hangar. \r 1
The pilot’s failure to maintain clearance from a tree limb during a low-level aerial application flight. \r 1
Failure of the landing gear motor that prevented the gear from extending fully to the down and locked position, which resulted in a gear collapse on landing and a subsequent loss of directional control.\r\n\r\n\r 1
The airplane’s impact with deer while landing. \r 1
The pilot's failure to familiarize himself with the wind conditions at the destination airport and his failure to attain the proper touchdown point during landing, which resulted in a long, tailwind landing and subsequent runway overrun.\r 1
The pilot's failure to maintain adequate airspeed during the landing flare which resulted in an aerodynamic stall and collision with the ground. \r 1
The mechanic’s improper maintenance, which resulted in the crankshaft expansion plug dislodging in flight and a subsequent forced landing. \r 1
The pilot’s loss of directional control during landing following a hard landing and failure of the right main tire.\r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing and runway excursion.\r 1
The student pilot’s loss of directional control during takeoff and the flight instructor’s delayed remedial action which resulted in a runway excursion and impact with a steel object.\r 1
The pilot's improper landing flare which resulted in a bounced landing and a subsequent noseover. \r 1
The student pilot’s improper application of the airbrakes during final approach, which resulted in a landing area undershoot and subsequent hard, bounced landing. \r 1
The fight instructor’s failure to ensure that the fuel selector handle was in the correct position, which resulted in a total loss of engine power during initial climb due to fuel starvation.\r 1
The pilot's failure to maintain directional control on landing, which resulted in a runway excursion and subsequent nose-over. Contributing was the pilot’s lack of experience in the accident airplane.\r\n\r 1
A ruptured fuel line, which resulted in fuel starvation to the engine and a total loss of engine power.\r 1
The pilot’s failure to maintain directional control during the landing roll with a quartering gusting headwind.\r 1
The pilot’s failure to maintain airplane control and improper recovery from an unusual attitude, which resulted in an in-flight breakup. \r 1
The inadvertent encounter with water wake during the takeoff sequence that degraded the airplane’s airspeed and resulted in the pilot’s failure to maintain clearance from obstacles during the initial climb. \r 1
The pilot’s failure to maintain control of the airplane during an aborted landing and the flight instructor’s inadequate remedial action.\r 1
The pilot’s failure to maintain control of the helicopter while attempting to land on a trailer in gusting wind conditions, which resulted in a dynamic rollover. \r 1
The pilot’s inadequate preflight inspection, which resulted in his inadvertent departure with the tow bar connected to the nose wheel, and the low approach while returning to the airport, which allowed the tow bar to contact trees.\r\n \r 1
A loss of engine power due to the pilot’s inadvertent closure of the mixture control which starved the engine of fuel and resulted in a hard landing and collision with terrain. \r 1
The pilot’s failure to maintain directional control during takeoff in gusting crosswind conditions, which led to a runway excursion.\r 1
A total loss of engine power due to fuel starvation, as a result of an incorrectly placarded fuel selector.\r 1
The pilot’s failure to maintain pitch control of the airplane during landing, which caused the airplane to nose over during landing roll. Contributing to the accident was the main landing gear modification which increased the airplane’s tendency to nose over during ground operations. \r 1
The pilot’s improper landing flare, which resulted in a hard landing. \r 1
The pilot’s failure to maintain adequate clearance from trees during an approach in sun glare and hazy conditions. \r 1
The pilot’s descent into the ocean for reasons that could not be determined. \r 1
The pilot's failure to maintain airplane control during takeoff from an unimproved airstrip, which resulted in a nose-over. \r 1
The pilot's failure to maintain adequate clearance from trees during an off-airport landing. \r 1
The pilot’s failure to maintain clearance from power lines during his attempted landing and his loss of situational awareness that led to him to misidentify a pipeline field for the landing airpark. \r\n\r 1
The pilot’s loss of directional control while landing, which resulted in an encounter with snow and subsequent nose over.\r 1
The pilot's failure to maintain adequate clearance from obstacles during the attempted go around following an approach to landing in sun glare. \r 1
The pilot’s failure to maintain proper control of the airplane, which led to an unstabilized approach and a long landing on a runway contaminated with ice and patchy packed snow resulting in a runway excursion.\r\n\r\n\r 1
The pilot’s failure to maintain directional control during the landing with a tailwind.\r 1
The pilot's inadequate pedal application during liftoff with a tailwind, which resulted in a loss of yaw control and a subsequent impact with terrain.\r 1
The student pilot did not maintain directional control of the airplane while landing. Contributing to the accident was the pilot’s diverted attention to the incorrect flap setting.\r 1
The pilot’s failure to maintain lateral control during an off-field landing, which resulted in loss of control and an impact with terrain.\r 1
The pilot’s decision to land the airplane in crosswind conditions that exceeded the airplane’s maximum demonstrated crosswind velocity.\r 1
The pilot's failure to maintain directional control during the landing rollout, which resulted in a ground loop.\r 1
The pilot’s encounter with an updraft which resulted in a loss of aircraft control and subsequent collision with powerlines.\r 1
The pilot’s improper landing flare during the rejected takeoff that resulted in a hard landing and nose landing gear collapse.\r 1
The pilot’s improper recovery from a bounced landing, which resulted in a loss of directional control and subsequent runway excursion.\r 1
The pilot’s failure to maintain control of the airplane during the landing and his failure to confirm that the landing gear was extended before landing.\r 1
The pilot's failure to maintain directional control of the airplane during the landing. \r 1
The pilot's loss of directional control while landing in a gusty crosswind, which resulted in a runway excursion and subsequent impact with terrain. \r 1
The pilot’s failure to maintain directional control during landing, with resulted in a ground loop and subsequent nose over.\r 1
The pilot’s failure to perform a go-around during an unstable approach to land which resulted in a landing area overshoot and a subsequent runway excursion. \r 1
The pilot’s selection of unsuitable terrain for landing. A factor was the certified flight instructor’s selection of unsuitable terrain for landing. \r 1
The pilot's failure to maintain helicopter control, which resulted in a hard landing. \r 1
A failure of the throttle control during a landing roll, which resulted in a loss of control and collision with a fence.\r 1
The pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop.\r 1
A partially engaged right wheel brake, which restricted the airplane’s acceleration and the pilot’s ability to pitch to takeoff attitude, and resulted in an aborted takeoff and subsequent runway excursion.\r 1
The student pilot’s improper landing flare and loss of directional control and the flight instructor’s delayed remedial action resulted in a runway excursion and nose over. \r 1
The pilot’s failure to adequately monitor the environment which resulted in a collision with a snowbank and subsequent loss of control. \r 1
The pilot’s decision to takeoff from unsuitable terrain which resulted in an aerodynamic stall and subsequent impact with terrain.\r 1
The pilot’s failure to maintain control of the helicopter shortly after liftoff into a hover, which resulted in a dynamic rollover when the left landing skid contacted the ground.\r 1
The pilot's distraction and his failure to maintain a proper glidepath on the approach, which resulted in him landing short of the runway and impacting a snowbank.\r\n\r 1
A bystander’s inadvertent contact with the propeller while the engine was running.\r 1
The student pilot’s exceedance of the airplane’s critical angle attack during an attempted go-around, which resulted in an aerodynamic stall. \r 1
The pilot’s failure to avoid an obstacle during his approach to land.\r\n\r 1
The pilot’s inadvertent attempt to takeoff on a taxiway, rather than a runway, which resulted in a collision with a fence during takeoff.\r 1
The non-rated pilot’s unstable approach and failure to maintain aircraft control, which resulted in a hard landing and collision with terrain. \r 1
The pilot’s incorrect automated landing profile selection, which resulted in an impact with a runway trench. Contributing to the accident was the pilot receiving instruction's and instructor's failure to spot the incorrect landing profile selection during prelanding checks. \r 1
The pilot’s failure to maintain clearance from mountainous terrain after an encounter with a downdraft, which resulted in a collision with terrain.\r 1
The failure of the right brake master cylinder lock seal spring washer.\r 1
The flight attendant’s use of improper procedures when opening the main cabin door.\r 1
The pilot's failure to maintain directional control during a crosswind landing.\r 1
The pilot’s selection of unsuitable terrain for the landing, which resulted in a nose over when the airplane encountered soft sand during the landing roll.\r 1
The airplane’s collision with a bird during initial climb, which resulted in a forced landing. \r 1
The pilot’s improper decision to fly the airplane at too low an altitude resulting in the airplane impacting terrain. \r\n\r\n\r 1
The pilot's failure to maintain directional control while landing in a gusty crosswind, which resulted in a runway excursion and noseover.\r 1
The flight instructor’s failure to maintain adequate clearance above the gravel surface in a hover, which resulted in a dynamic rollover.\r 1
The pilot’s loss of control on takeoff during a touch and go landing, which resulted in a runway excursion. \r 1
The pilot’s failure to maintain proper glide path during a visual approach that was conducted at night, resulting in a collision with trees and terrain.\r 1
The pilot/owner’s improper preflight inspection of the weight-shift trike, which resulted in a loss of control at takeoff due to an improperly adjusted wingtip. \r 1
The pilot’s failure to attain a proper touchdown point and his landing with a high approach speed, which resulted in a runway overrun.\r 1
The non-instrument rated pilot’s encounter with poor weather conditions resulting in his performing a precautionary landing to a cornfield and subsequently nosing over. \r\n\r\n\r 1
The pilot’s failure to maintain a proper glidepath while on approach to the runway, and the flight instructor’s delayed remedial action, which resulted in the airplane colliding with a tree on final approach. \r 1
The pilot’s failure to maintain proper airspeed control during an instrument approach in instrument meteorological conditions, which led to a bounced landing, collapsing the nose landing gear, and resulting in substantial damage.\r 1
The pilot's loss of directional control during takeoff in crosswind conditions, which resulted in a runway excursion and impact with terrain. \r 1
The pilot’s improper in-flight decision making which resulted in a total loss of engine power due to fuel starvation.\r\n\r 1
The student pilot’s failure to maintain attain proper pitch attitude of the airplane causing it to exceed its critical angle of attack, enter an aerodynamic stall, and subsequently impact terrain, and his poor decision making and lack of experience that led him to attempt the takeoff from the road.\r\n\r 1
The pilot’s failure to maintain airplane control while on landing in gusting crosswind conditions.\r 1
The pilot’s loss of airplane control during an off-airport landing on soft sand, which resulted in a nose over.\r 1
The pilot's failure to maintain directional control while landing, which resulted in a runway excursion. \r 1
The pilot’s failure to maintain control of the balloon and a member of the ground crews entanglement with a tether rope, which resulted in a serious injury when they fell to the ground after the balloon unexpectedly ascended. \r 1
The pilot’s decision to land on a soft terrain which resulted in the failure of the nose landing gear.\r 1
The solo student pilot’s failure to maintain directional control during taxi in strong crosswind conditions, which resulted in a loss of control and subsequent impact with a ditch. \r 1
The pilot’s failure to see and avoid a transmission wire during takeoff.\r 1
The noninstrument-rated pilot's improper decision to continue flight into convective weather conditions, which resulted in the airplane exceeding its maximum maneuvering speed and the subsequent in-flight breakup. Contributing to the accident was the pilot's inadequate preflight weather planning and his inadequate inflight weather avoidance of that weather. 1
A total loss of engine power due to the failure of the gas generator sealing disk as a result of the operator’s exceedance of the sealing disk life limits at too low an altitude for the pilot to accomplish a successful autorotation which resulted in the collision with terrain. \r 1
The in-flight failure of the engine-to-transmission drive shaft due to a fatigue fracture of one of the KAflex flex frames caused by a loose bolt, which resulted in a total loss of engine power and a subsequent hard landing. \r 1
A total loss of engine power for reasons that could not be determined because a postaccident engine examination and testing revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot’s inappropriate descent profile during landing with a quartering gusting tailwind, which resulted in a loss of main rotor rpm.\r\n\r 1
The in-flight leakage of fuel from the fuel injection system's mixture shaft onto the hot turbocharger, which resulted in an in-flight fire, and the pilot's inability to see the runway due to reduced visibility conditions and conduct a successful landing. 1
The pilot's decision to continue visual flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. 1
The pilot’s failure to attain adequate airspeed during the short field takeoff, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall. 1
The pilot’s excessive rudder and brake applications during landing, which caused the airplane to nose over. 1
The pilot’s failure to maintain directional control while landing, which resulted in a runway excursion.\r 1
The pilot's loss of control due to spatial disorientation while maneuvering in instrument meteorological conditions. Contributing was the pilot's lack of instrument currency and his self-induced pressure to complete the flight. 1
The pilot’s failure to maintain yaw control and the exceedance of the airplane’s critical angle of attack in the traffic pattern, which resulted in an aerodynamic stall/spin.\r\n\r 1
The pilot’s improper landing flare, which resulted in a loss of directional control and subsequent impact with approach lighting.\r\n\r 1
The pilot’s selection of an unsuitable taxiway, which resulted in the wings striking hidden fence posts. \r\n\r 1
A loss of engine power during takeoff due a coolant leak and the subsequent overheating of the engine, and the student pilot's failure to maintain airspeed and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and collision with terrain. Contributing to the accident was inadequate maintenance inspection and the flight instructors delayed remedial action.\r 1
The pilot's improper decision to fly an airplane with a known oil leak, which led to a total loss of engine power due to oil starvation. Contributing to the accident was the pilot's decision to land with a tailwind, which led to his attempted go-around and subsequent loss of control. 1
A loss of engine power due to fuel starvation as a result of the pilot's inadequate planning and in-flight fuel management. Contributing to the accident was the pilot’s failure to follow proper procedures after the loss of engine power.\r 1
A partial loss of engine power due to the failure of the No. 3 valve key (exhaust). \r\n\r\n\r 1
The pilot’s inadequate preflight and in-flight fuel management, which resulted in an intermittent loss of engine power due to fuel starvation.\r\n\r 1
The pilot’s inadvertent pulling of the fuel shutoff valve, which resulted in a total loss of engine power and a subsequent forced landing into trees. Contributing to the pilot’s inadvertent pulling of the fuel shutoff valve were habit patterns he had developed from operating an airplane with different flight controls.\r\n\r 1
The improper installation of the generator by unknown personnel, which resulted in a loss of oil and subsequent engine failure.\r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing.\r\n\r 1
The student pilot’s failure to maintain lateral control of the high-performance airplane during the go-around in crosswind conditions.\r\n\r 1
The inadequate cooling time between repeated heavy braking applications, which resulted in the brakes overheating and a subsequent brake fire during the aborted takeoff sequence. \r 1
The engine’s excessive cylinder head temperatures and the subsequent seizing of the engine, which resulted from an engine control unit that caused the engine’s fuel-air mixture to be too lean. 1
The student pilot's failure to maintain a proper glidepath during the approach due to his distraction by the failure of an avionics panel, which resulted in a runway undershoot. 1
The pilot’s inadequate preflight inspection and failure to detect water contamination in the fuel system, which resulted in a partial loss of engine power on takeoff.\r 1
The pilot’s failure to land the helicopter with both skids on the trailer platform, which resulted in a loss of control.\r\n\r 1
The pilot’s improper decision to contact an unsuitable landing surface, which resulted in a nose-over.\r 1
The pilot’s failure to maintain situational awareness during the approach to land. Contributing to the accident was the pilot’s distraction by the instrument panel during the approach.\r\n\r 1
The pilot's decision to continue the landing after a loss of visual cues during a night landing.\r 1
The pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in a runway excursion. \r 1
The pilot’s exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall.\r\n\r 1
An in-flight collision with a bird. \r\n\r 1
The pilot's failure to maintain clearance from powerlines while maneuvering at low altitude. 1
The failure of the engine-driven fuel pump and the pilot's failure to identify the pump's failure, which resulted in a loss of engine power due to fuel starvation and a forced landing on a road, during which the airplane hit obstacles.\r\n\r 1
The noninstrument-rated pilot's intentional visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. Contributing to the accident was the pilot's self-induced pressure to complete the flight. 1
The pilot's failure to maintain adequate separation between a long line being used to hoist linemen from a shield wire during an external load flight, which resulted in the long line being severed.\r 1
The pilots' loss of control during a missed approach in night instrument meteorological conditions as a result of spatial disorientation. 1
The pilot's incorrect pitch control during takeoff, which resulted in a nose-over. 1
The pilot’s failure to maintain an appropriate descent rate for a glassy water landing, which resulted in a hard landing.\r 1
The failure of the universal joint in the pilot-side flight control yoke due to the fatigue fracture of a rivet within the universal joint. Contributing to the universal joint failure was the universal joint design, which was prone to galling wear and seizure. \r 1
The loss of engine power due to fuel starvation, which resulted from the unporting of the fuel during a right turn due to the auxiliary fuel tanks' improper configuration. 1
A loss of engine power for undetermined reasons after the disconnection of the propeller governor control due to inadequate securenment during maintenance.\r 1
The pilot's failure to maintain lateral/bank control during landing in gusting crosswind conditions. 1
The pilot's failure to maintain pitch control of the helicopter while transitioning from a hover to forward flight. 1
The pilot’s unstabilized approach, which resulted in a hard, bounced landing and nose-over. Also causal to the accident was the pilot’s improper decision to land on a closed alternate grass landing area.\r\n\r 1
The in-flight separation of a portion of the propeller, which subsequently penetrated the right rudder, as a result of the failure of the bond line between two of the propeller’s wood layers. Contributing to the failure of the propeller was the manufacturer’s use of an inappropriate bonding agent.\r 1
The fatigue fractures of the upper and lower alternator attachment bolts, which decreased the common drive belt tension and resulted in the subsequent in-flight separation of an alternator drive belt, the overheating of the engine, and the subsequent total loss of engine power. \r 1
The pilot’s failure to use taxiways shown on the airport diagrams and his subsequent failure to avoid a ditch.\r\n\r 1
The failure of the No. 4 connecting rod due to inadequate oil lubrication for reasons that could not be determined because the postaccident engine examination did not reveal any anomalies that would have caused a lack of lubrication.\r 1
The pilot's loss of situational awareness shortly after takeoff over a sparsely lit area in dark night conditions, which resulted in a rapid descent to ground impact. \r\n\r\n \r\n\r\n \r\n\r 1
The student pilot’s improper landing flare, which resulted in a porpoise.\r\n\r 1
The pilot's improper in-flight fuel management and reliance on a faulty fuel gauge, which resulted in fuel starvation during approach for landing, and his failure to follow the emergency checklist after losing engine power. 1
The pilot’s loss of directional control during the landing roll on the wet runway. \r 1
A failure of the airplane 's electrical system, which led to the failure of the landing gear system, for reasons that could not be determined because postaccident examination and testing revealed no mechanical anomalies that would have precluded normal operation. Contributing to the accident were the inoperative landing gear unsafe warning horn and the low voltage warning light.\r 1
The pilot’s improper landing flare, which resulted in a porpoise.\r\n\r 1
A loss of engine power due to the detonation of the No. 5 cylinder due to excessive leaning at high power settings, which resulted in a forced landing and the subsequent hard touchdown.\r 1
A total loss of left engine power during initial climb. Contributing to the accident was the pilot's failure to maintain control of the airplane following the loss of engine power.\r 1
A loss of engine power due to carburetor icing and the presence of an insect nest in the carburetor heat control box that prevented the pilot’s application of carburetor heat from restoring engine power.\r 1
The pilot’s improper landing flare, which resulted in loss of directional control and a subsequent runway excursion.\r\n\r 1
The pilot's delayed decision to execute an emergency landing and his attempt to return to the airport following a partial loss of power due to wear on internal engine components, which prevented the engine from developing full-rated power during the airplane's initial climb. \r 1
The pilot’s failure to see and avoid power wires.\r\n\r 1
The provisioning agent's lack of situational awareness while stepping from the airplane to the provisioning van. Contributing to the accident was the provisioning vans failed switch. 1
An in-flight loss of control due to bird strikes. 1
Impact with trees and terrain for reasons that could not be determined based on available evidence. 1
The pilot’s decision to continue to land without visual reference to the airport in low light conditions. Contributing to the accident was the pilot’s inability to activate the private airport’s pilot-controlled lighting system due to its configuration.\r\n\r 1
An uncommanded yaw and subsequent loss of main rotor rpm for reasons that could not be determined. \r 1
The student pilot’s improper landing flare, which resulted in the propeller striking the ground.\r 1
The loose nut connecting the mixture control cable to the mixture control arm, which resulted in the pilot’s inability to control the mixture and the subsequent total loss of engine power. \r\n \r\n\r 1
The other pilot's failure to maintain adequate clearance from the airplane before beginning an inverted flight maneuver, which resulted in a collision with the airplane when he rolled his airplane upright. 1
The pilot's exceedance of the airplane's critical angle of attack while performing a turning takeoff, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was the pilot's decision to attempt the takeoff, which he believed required a steep turn at a low altitude to avoid power lines. 1
The pilot’s failure to stop the main rotor rotation before taxiing the gyroplane in gusting wind conditions, resulting in the main rotor striking the empennage.\r\n\r 1
A total loss of engine power due to the failure of the No. 4 piston, which resulted in an attempted forced landing in dark night conditions and a subsequent in-flight collision with trees and terrain. Contributing to the accident were the pilot's situational stress and fatigue, both of which degraded his performance. 1
Failure of the oil pressure gauge line, which resulted in oil exhaustion and a total loss of engine power. 1
The noninstrument-rated pilot's inadequate pre-flight planning and in-flight decision-making, which resulted in flight into known instrument meteorological conditions and the subsequent collision with terrain. 1
The other pilot’s failure to see and avoid another airplane parked on the taxiway while taxiing in sun glare conditions.\r 1
the abrupt pitch up maneuver which caused the flight attendant to lose her balance and injure her ankle. 1
The pilot’s selection of unsuitable terrain for landing, which resulted in a loss of directional control and subsequent nose-over. \r\n\r 1
The pilot's inadequate compensation for crosswind conditions, which resulted in a hard landing and the right main landing gear collapsing. \r\n\r\n\r 1
The flight instructor’s failure to comply with published engine-out procedures and recommended airspeeds, which resulted in a lack of directional control, collision with trees, and impact with the ground; the left engine lost total power due to fuel starvation. \r 1
The student pilot’s improper control inputs, which resulted in a loss of control on takeoff. Contributing to the accident was the flight instructor’s inadequate remedial action.\r 1
The pilot’s failure to maintain directional control of the airplane during the landing. \r 1
The total loss of engine power due to fuel starvation when the cap fitting came off the inlet tee fitting on the throttle body/fuel metering unit. 1
The student pilot’s improper landing flare, which resulted in a hard, bounced landing and subsequent go-around during which the student exceeded the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r\n\r 1
The failure of the landing gear through bolt primarily due to fatigue during a hard landing, which resulted in a landing gear collapse and runway excursion. Contributing to the accident was noncompliance with the manufacturer service letter. 1
The passenger's inadvertent activation of the left brake during landing, which resulted in a loss of directional control and a runway excursion.\r 1
The sport pilot's decision to depart in and continue flight in instrument meteorological conditions, which resulted in controlled flight into terrain. 1
The pilot's improper decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in the pilot experiencing spatial disorientation and a subsequent loss of airplane control. 1
The student pilot’s improper yaw control during the landing flare and the flight instructor’s failure to take remedial action, which resulted in a hard landing.\r\n\r 1
A failure of the normal landing gear extension system for reasons that could not be determined due to damage to the system and the pilot's failure to ensure that the landing gear was down and locked before touchdown. Contributing to the accident was the pilot’s distraction due to weather and traffic.\r 1
The pilot’s failure to maintain airplane control while on final approach for landing in crosswind conditions, which resulted in a collision with trees. \r 1
The pilot's low altitude flight into a power line due to his impairment from an acute physiologic event during the flight. Contributing to the pilot's impairment was his use of two sedating medications. 1
The student pilot’s failure to maintain directional control during the landing flare.\r\n\r 1
failure of a cargo tie-down fastener, resulting in unsecured cargo striking the pressure bulkhead. 1
The pilot's loss of control due to spatial disorientation during takeoff in instrument meteorological conditions. 1
The pilot's failure to use carburetor heat in weather conditions conducive to serious carburetor icing, which resulted in a total loss of engine power and a subsequent forced landing.\r 1
The pilot's loss of directional control during the rejected takeoff. Contributing to the accident were the pilot's lack of familiarity with the airport runway configuration, which led to his premature attempt to take off, and the airplane’s inoperative landing light. 1
The pilot's activation of the rotor brake while the No. 2 engine was still set to govern the power turbine speed, which resulted in continuous power being applied to the rotor while the rotor brake was engaged and led to excessive friction, heat, and a subsequent fire in the area of the rotor brake. \r 1
The pilot’s decision to land with the sun in his eyes, which resulted in a short landing.\r\n\r 1
The pilot's failure to maintain clearance from trees while maneuvering for landing and his decision to land on a surface with obstructions. 1
an inadvertent encounter with convective turbulence that resulted in a flight attendant injury. 1
The pilot’s failure to maintain directional control during a touch-and-go landing.\r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing and the failure of the left main landing gear tire. 1
A stone becoming lodged in a left main landing gear (MLG) drag link, which resulted in the failure of the left MLG to extend and lock. 1
The pilot's failure to maintain adequate airspeed following a loss of engine power during final approach for landing, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall. 1
The flight instructor’s inadequate preflight inspection, during which he failed to ensure that water was sufficiently drained from the fuel system, which resulted in total loss of engine power and a subsequent forced landing and impact with objects. \r 1
The failure of the flight crew of N9011P to maintain an appropriate clearance from N344PP, which was stopped on the taxiway. 1
Encounter with a flock of birds during takeoff at night, resulting in multiple bird strikes and structural damage.\r\n\r 1
The right main landing gear’s failure to fully extend for reasons that could not be determined because postaccident testing revealed no mechanical anomalies that would have precluded normal operation. 1
The pilot's inadequate preflight planning and his decision to depart without the required fuel reserve, which resulted in fuel exhaustion during a night approach and subsequent loss of engine power.\r 1
The pilot’s improper landing flare, which resulted in a tail strike and hard landing.\r\n\r 1
The pilot’s loss of directional control during the landing roll, which resulted in a runway excursion and nose over.\r\n\r 1
The pilot's failure to maintain directional control of the airplane during the landing roll. Contributing to the accident was the fatigue of the left main landing gear assembly. \r 1
The pilot’s failure to maintain the airplane’s rate of descent in gusting wind conditions resulting in a hard landing and runway excursion.\r\n\r 1
The non-multiengine rated pilot's failure to maintain airplane control during a single-engine approach. Contributing to the accident was a total loss of engine power on the left engine due to detonation for reasons that could not be determined based on the available information. 1
A total loss of engine power due to the failure of a connecting rod. \r\n\r 1
The pilot’s failure to maintain situational and geographic awareness during the flight, which resulted in him becoming lost and exhausting the gyroplane’s fuel.\r 1
The pilot's loss of airplane control due to spatial disorientation during an instrument approach in instrument meteorological conditions, and the flight instructor's delayed remedial action. Contributing to the accident was the flight instructor's impairment from the use of prescription pain medication. 1
The pilot’s unstabilized approach and failure to go around at night, which resulted in the airplane impacting a power line and a subsequent hard landing.\r\n\r 1
The pilot’s decision to abort the takeoff following a touch-and-go landing with too little runway remaining, which resulted in a runway overrun.\r\n\r 1
The pilot’s excessive application of aft stick during takeoff, which resulted in an aerodynamic stall. Contributing to this accident was the pilot’s inexperience in the airplane.\r\n\r 1
The pilot’s improper landing flare, which resulted in a hard landing. Contributing to the accident was the pilot’s failure to securely lock the canopy before takeoff.\r\n\r 1
The pilot’s improper approach path, which resulted in the airplane landing short of the runway.\r\n\r 1
The No. 1 cylinder head separating at the cylinder head-to-barrel interface and the subsequent total loss of engine power. \r\n\r 1
The pilot's loss of control while returning to the airport after takeoff for reasons that could not be determined based on the available information. 1
The pilot's decision to continue visual flight into an area of instrument meteorological conditions while conducting an instrument approach, which resulted in a loss of visual reference and subsequent controlled flight into terrain. 1
failure of the flight crew to confirm the left engine throttle lever was at idle during engine start. 1
The pilot’s improper landing flare and his subsequent failure to see and avoid a tree during a go-around.\r\n\r 1
The pilot’s failure to maintain lateral control of the helicopter during takeoff, which resulted in dynamic rollover.\r\n\r 1
The pilot’s failure to see and avoid power lines while maneuvering at a low altitude.\r\n\r 1
The pilot’s improper glidepath during a night approach, which resulted in impact with terrain short of the runway.\r\n\r 1
The incident was caused by the air traffic controller assigning an altitude below the published procedure altitude for the approach segment to be flown prior to the aircraft being established on a published portion of the approach. Contributing to the incident was the flight crew's failure to identify the appropriate altitude for the segment of the approach being flown and query the controller before subsequent decent below the published minimum altitude.\r 1
The tow plane pilot's loss of airplane control for reasons that could not be determined based on the available evidence. Contributing to the accident was the glider instructor's diversion of attention away from the tow airplane which resulted in his delay in releasing the tow rope once the tow plane was no longer visible from the glider cockpit. 1
The accumulation of carburetor ice while operating at a reduced engine power setting, which resulted in a total loss of engine power on approach and a subsequent forced landing on unsuitable terrain. 1
A failure of both magnetos due to multiple deficiencies, which resulted in a total loss of engine power.\r 1
The flight instructor’s failure to use carburetor heat, which resulted in the total loss of engine power due to carburetor icing.\r\n\r 1
The pilot's improper response to a total loss of engine power, which resulted in main rotor blade contact with the rudder and vertical stabilizer, and a subsequent uncontrolled descent. The loss of engine power was due to the separation of the electrical connector to the coil of the crank triggered ignition system. 1
A failed main landing gear tire for reasons that could not be determined due to postcrash fire damage. \r\n\r 1
The pilot’s failure to maintain clearance from airport lighting during the landing roll.\r\n\r 1
A total loss of engine power due to a fatigue failure of the crankshaft that resulted from main bearing shift and lack of lubrication. 1
The pilot’s inadequate preflight planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion. \r\n\r 1
The pilot’s failure to maintain a proper descent rate, which resulted in a hard landing.\r\n\r\n\r 1
The flight instructor's failure to completely and properly evaluate the student pilot's incorrectly- planned flight, and his failure to use all available resources to maintain situation awareness during the flight, which resulted in controlled flight into terrain. 1
The failure N841NNs captain to maintain appropriate clearance from N982VJ, which was stopped on the taxiway. 1
The pilot's failure to maintain control of the helicopter, which resulted in a loss of tail rotor effectiveness, and his failure to promptly initiate the proper recovery technique, which resulted in a descent that could not be arrested before impacting the terrain. 1
The noninstrument rated pilot's decision to depart on a cross-country flight with en route weather conditions forecasted to be less than visual meteorological conditions and then to continue flight into instrument meteorological conditions, which resulted in controlled flight into terrain. 1
The pilot's use of an incorrect airspeed during landing, which resulted in a runway overrun. 1
The pilot's failure to enrich the mixture during the descent, as required by the Pilot's Operating Handbook (POH), and his subsequent failure to follow the POH emergency procedures, which resulted in an excessively lean fuel/air mixture and subsequent loss of rpm. Contributing to the accident was the pilot's improper decision to land on unsuitable terrain despite the availability of two nearby airports. 1
The pilot's failure to maintain adequate distance from helicopters during the approach for landing, resulting in an encounter with wake turbulence and subsequent loss of control. 1
the mechanical failure of the tugs fuel governor, which made it difficult for the ramp agent to stop the tug. Contributing to the accident was the lack of guidance on how ground personnel were to handle vehicle malfunctions. 1
The pilot’s failure to maintain clearance from a powerline during landing.\r 1
Maintenance personnel's failure to properly torque an oil supply line fitting, which resulted in oil starvation, a subsequent engine failure, and an off-airport landing.\r 1
The flight instructor's failure to maintain directional control during the takeoff roll. 1
An inflight loss of control and collision with terrain for undetermined reasons after a thorough examination of the airplane's flight controls was unable to confirm control continuity. Contributing to the accident was the pilot's lack of experience in the accident make and model airplane and his lack of recent flight experience. 1
The pilot's decision to attempt a low-altitude aerobatic maneuver in a non-aerobatic airplane, and his subsequent failure to maintain control of the airplane during the maneuver. Contributing to the accident was the pilot's impairment by the effects of diphenhydramine use, and his underlying mild cognitive impairment. 1
The student's pilot’s failure to maintain adequate airspeed during approach and subsequent exceedance of the critical angle of attack during a go-around, which resulted in an aerodynamic stall and a subsequent hard landing. Contributing to the accident was the flight instructor's delayed remedial action during the attempted go-around.\r 1
The pilot's improper decision to initiate a flight in an airplane he had never flown and with no currency in any airplane nor a medical certificate, which resulted in his loss of airplane control. Contributing to the accident was the pilot's psychiatric disease, which likely affected his decision-making and judgment. 1
The pilot’s failure to track the runway centerline during an attempted go-around, which resulted in impact with a hangar.\r\n\r 1
The partial loss of engine power due to the No. 2 cylinder exhaust valve being stuck. 1
The loss of engine power during a precautionary approach for landing for reasons that could not be determined based on the available information. 1
The other pilot's failure to maintain adequate clearance from a balloon on the ground during landing.\r\n\r\n \r\n\r 1
The student pilot’s tension on the flight control at a low level during an autorotation, which did not allow sufficient time for the flight instructor to correct and recover control before the hard landing. \r\n\r 1
The pilot's failure to properly secure the airplane before a hand propeller start, which resulted in the airplane moving forward and colliding with maintenance equipment. 1
The pilot's inadequate preflight inspection, which resulted in undetected water in the fuel system and a total loss of engine power during the initial climb. 1
The student pilot’s incorrect application of the brakes and subsequent failure to maintain directional control during the landing roll. Contributing to the accident was the flight instructor’s delayed remedial action.\r\n\r 1
The noninstrument-rated pilot's decision to depart into instrument meteorological conditions, and his subsequent loss of control due to spatial disorientation. 1
Partial retraction of the main landing gear during the landing roll for reasons that could not be determined because postaccident examination and functional testing of the gear revealed no anomalies. 1
The student pilot's failure to maintain rotor rpm during the crosswind landing approach and his subsequent improper decision to initiate an autorotation instead of applying corrective control inputs after the helicopter experienced normal airframe vibration. Also causal was his failure to raise the collective during the landing flare, which resulted in a hard landing. 1
The student pilot's decision to take off from a partially-lit grass runway in dark night, marginal visual flight rules conditions, which resulted in spatial disorientation, an exceedance of the airplane's critical angle of attack, and an aerodynamic stall. 1
The pilot’s failure to maintain directional control during the takeoff roll in gusting crosswind conditions. \r\n\r 1
the failure of the sUAS pilot to see and avoid the helicopter due to his intentional flight beyond visual line of sight. Contributing to the incident was the sUAS pilot's incomplete knowledge of the regulations and safe operating practices. 1
The separation of the wheel assembly during landing due to the pilot’s use of improper retaining nuts when he installed the tundra tires. \r 1
The student pilot’s failure to maintain lateral control during a hover pedal turn. \r\n\r 1
The failure of the weld that connects the left main landing gear and the axle during the takeoff roll.\r\n\r 1
The pilot's failure to maintain directional control during the landing roll in gusting wind conditions. 1
The pilot's decision to fly into a canyon during wind conditions conducive to turbulence and downdrafts, and his subsequent loss of aircraft control while maneuvering in the canyon. Contributing to the accident was the pilot's limited canyon flying experience. 1
An in-flight collision with a bird while on downwind.\r\n\r 1
The airplane pilot's inadequate visual lookout, which resulted in an in-flight collision with a helicopter. Contributing to the accident was the airplane pilot's failure to adequately transmit his position while operating in the airport traffic pattern.\r 1
The pilot’s inadequate preflight fuel planning and improper decision to not refuel before the flight, which resulted in fuel exhaustion and the subsequent total loss of engine power.\r\n\r 1
The pilot's failure to maintain directional control during taxi after a reduction in braking performance and steering capabilities due to his failure to reopen the air supply valve after the nonstandard engine start. \r\n\r\n\r 1
The pilot under evaluation’s failure to maintain adequate airspeed during a simulated hydraulic failure, which resulted in a loss of helicopter control. Contributing to the accident was the check pilot’s delayed remedial action.\r\n\r 1
The pilot's loss of airplane control due to spatial disorientation. 1
The pilot’s improper landing flare, which resulted in a hard landing while conducting an off-airport precautionary landing after a bird strike.\r\n\r 1
The student pilot’s unstabilized hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor’s delayed remedial action. \r\n\r 1
Water contamination of the fuel that was not detected during a preflight inspection, which resulted in a total loss of engine power. 1
The pilot's improper decision to return to the runway instead of landing straight ahead when the engine lost power and his failure to maintain adequate airspeed while maneuvering for an emergency landing, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's failure to properly secure the left main fuel tank cap after refueling, which resulted in a loss of engine power due to fuel starvation during the takeoff climb. 1
The pilot's inadequate preflight inspection, which resulted in oil exhaustion and a subsequent total loss of engine power during cruise flight. 1
A total loss of engine power due to cold seizure of the No.1 piston, which resulted in its failure and a subsequent emergency autorotation and impact with a house’s roof.\r 1
An engine loss of power due to fuel starvation from a broken fuel line between the fuel tank and the engine; the loss of engine power prevented the pilot from reaching a suitable landing area. Contributing to the accident was the inadequate maintenance of the engine and its components. 1
The pilot’s inability to maintain pitch control due to an encounter with a tailwind gust after the airplane had stopped, which resulted in a nose-over.\r\n\r 1
the flight attendant accidentally pouring hot water on his hand which resulted in a 2nd degree burn. 1
The pilot's failure to remove the engine cowl plugs during preflight, which resulted in excessive engine cylinder head temperatures during climb and a total loss of engine power. 1
The pilot's failure to extend the landing gear before landing. \r 1
The airplane’s inadvertent entry into instrument meteorological, dark night conditions and the pilot’s failure to maintain an adequate approach for landing. \r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack during takeoff, which resulted in a departure stall.\r\n\r 1
The failure of both pilots to see and avoid the other airplane while maneuvering in the traffic pattern, which resulted in a midair collision.\r\nContributing to the accident was the controller's failure to provide adequate traffic information, issue necessary traffic advisories, and establish a safe traffic sequence for airplanes under his control in the Class D airspace.\r 1
The pilot's improper decision to perform aggressive, low-altitude maneuvers due to his impairment from the use of multiple psychoactive substances, which resulted in a loss of control. 1
The pilot’s failure to maintain directional control during takeoff in gusting wind conditions. \r\n\r 1
The pilot’s failure to verify that the parking brake was disengaged before landing, which resulted in a runway excursion.\r\n\r 1
The failure of the right rudder cable and subsequent loss of directional control during landing.\r\n\r 1
The pilot’s failure to maintain directional control during the landing roll in gusting wind conditions. \r\n\r 1
The pilot's improper decision to execute a tight turnaround with excessive flap extension during low-altitude agricultural operations, which resulted in an aerodynamic stall with insufficient altitude to recover. 1
The pilot’s loss of directional control during the landing roll. \r\n\r 1
The pilot's failure to maintain adequate clearance from the water while maneuvering at low altitude. 1
The total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s decision to operate the helicopter with minimum fuel on board. \r 1
The pilot’s failure to maintain lateral control during the landing roll. \r\n\r 1
The pilot’s failure to maintain directional control during the landing roll. Contributing to the accident was the pilot’s failure to obtain appropriate training in the airplane before flying solo.\r\n\r 1
The separation of a weight from the gunner’s net, which struck the helicopter’s main rotor blade during flight.\r\n\r 1
The pilot's incorrect pitch control and premature landing gear retraction during the initial climb. 1
The airplane's collision with a deer during the landing roll. 1
The failure of the right main landing gear (MLG) down-lock mechanism due to an out-of-tolerance down-lock hook, which resulted in the collapse of the right MLG during the landing roll. 1
The pilot's inadvertent contact with the engine control unit toggle switch during flight, which resulted in the engine shutting down. 1
The pilot’s decision to land on an unimproved snow-covered airstrip, which resulted in the airplane coming to rest inverted.\r\n\r 1
The pilot’s failure to center the ground steering before landing, which resulted in a loss of directional control.\r\n
\r 1
The failure of the pilot, who was not a certified mechanic, to tighten the B-nut on a remotely mounted oil filter line, which resulted in oil exhaustion, a total loss of oil pressure, and a subsequent total loss of engine power. 1
The pilot’s failure to properly secure an alternator ground cable swage that led to problems with the electrical system and/or electronic engine controls, which resulted in a total loss of engine power.\r 1
The pilot's mismanagement of the available fuel, which resulted in a total loss of engine power due to fuel starvation, and his delayed reaction to the loss of engine power, which led to impact with trees as he was attempting to switch fuel tanks. Contributing to the accident was pilot's decision to operate the airplane with a malfunctioning fuel quantity indication system. 1
The pilot’s failure to maintain directional control during the attempted takeoff, which resulted in a runway excursion. 1
The fatigue separation of the crankshaft due to a fatigue fracture, which resulted in a total loss of engine power and a subsequent off-airport landing and impact with a fence. \r 1
The flight instructor’s inadequate preflight fuel planning, which resulted in fuel exhaustion, a total loss of power to both engines, and a subsequent forced landing. \r 1
Failure of the left aileron control cable that resulted in a loss of aircraft control during takeoff. Contributing to the accident was inadequate maintenance inspections to the aileron cable connections. 1
The flight instructor's and pilot's failure to recognize that a high descent rate had developed on short final, likely due to their distraction by an open engine cowling, and the unexpected strong pitch-down force during flap extension due to the installation in the airplane of a Short Takeoff and Landing system. 1
The pilot's failure to maintain airspeed during the initial climb after takeoff, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall/spin. 1
The pilot’s inadequate compensation for gusting crosswind conditions during the go-around.\r\n\r 1
The pilot’s failure to apply carburetor heat in conditions conducive to carburetor icing, which resulted in a partial loss of engine power during landing.\r\n\r 1
The loss of engine power due to a propeller failure when the passenger’s hat exited the cockpit and impacted the three-bladed pusher propeller, separating one of the propeller blades.\r 1
The pilot's loss of situational awareness, which resulted in his failure to maintain adequate clearance from powerlines. 1
The pilot's incorrect pitch control during the landing roll in shifting wind conditions, which resulted in a nose-over. 1
The pilot's failure to extend the landing gear before landing, which resulted in a gear-up landing. Contributing to the accident was the pilot's fatigue and complacency. 1
The pilot’s failure to see and avoid unmarked power lines during the approach to land. \r 1
an inadvertent encounter of clear air turbulence. 1
The pilot's unstabilized approach at night, which resulted in collision with trees.\r\n\r\n \r\n\r 1
The steep approach and hard landing after the balloon encountered unexpected high wind conditions, which resulted in a serious injury to a passenger. \r 1
The failure of the fuel pump’s diaphragm which resulted in fuel system contamination from air and or oil and caused the engine to lose power. \r 1
The loss of directional control during takeoff and impact with a steel culvert. 1
An intermittent failure of the power take-off cylinder ignition coil, which resulted in a partial loss of engine power.\r 1
The pilot’s failure to maintain directional control during landing in gusting crosswind conditions. \r 1
A total loss of engine power due to carburetor ice accumulation. Contributing to the accident was the pilot’s failure to apply carburetor heat. \r 1
A collective control malfunction for reasons that could not be determined.\r 1
The pilot's decision to fly along the river at a low altitude contrary to applicable regulations and safety of flight considerations which resulted in the impact with the power lines. Contributing to the accident was the pilot's inability to see the and avoid the power lines due to their proximity to a bend in the river and the position of the sun at the time of the accident. 1
Controlled flight into terrain in dark night conditions. 1
The flight instructor's incorrect cyclic control during a hover, which resulted in a hard landing. 1
A coyote strike and the subsequent operation of the airplane, which led to internal composite wing structure damage. 1
The pilot's failure to maintain directional control during the takeoff roll in crosswind conditions. \r\n\r\n \r\n\r 1
The activation of the wheel brakes during landing, which resulted in a nose-over. The reason for the wheel brake activation could not be determined. 1
Collision with terrain after the pilot was unable to regain airplane control during an aerobatic maneuver. Contributing to the accident was the operator's failure to provide effective internal oversight to identify and prohibit exceedance of the airplanes' performance parameters, and the lack of regulatory framework available to oversee and regulate such flight operations. 1
The failure of the right main landing gear for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. \r\n\r 1
An improperly adjusted slope controller and fuel pump that resulted in an excessively high fuel flow, an extremely rich mixture, a rough-running engine, and a subsequent partial loss of engine power.\r 1
The pilot's decision to continue visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of control. 1
A descent and subsequent impact with open ocean waters for reasons that could not be determined based on the available information. 1
The pilot’s geographic disorientation while maneuvering in the airport traffic pattern in dark night conditions, which resulted in the airplane descending below a normal approach path and a collision with trees. Contributing to the accident was the pilot's lack of recent night flight experience. 1
The pilot’s improper conduct of the soft-field takeoff, which led to his failure to attain adequate airspeed, and the flight instructor’s subsequent improper landing flare, which resulted in a hard, forced landing.\r 1
The failure of maintenance personnel to properly secure wiring during an electrical component installation, which resulted in arcing and smoke in the cockpit. Contributing to the outcome was the flight instructor's failure to attain a proper descent rate during the forced landing.\r\n\r 1
The pilot's mismanagement of the onboard fuel, which resulted in fuel starvation, a total loss of power to both engines, and a subsequent forced landing. \r 1
The pilot's exceedance of the airplane’s critical angle of attack following a loss of ground reference during landing in glaring sun conditions, which resulted in an aerodynamic stall/spin. 1
An in-flight loss of control due to a bird strike. 1
The pilot’s improper landing flare, which led to a hard landing and the subsequent collapse of the nosewheel landing gear due to the overstress failure of the nosewheel landing gear trunnion casting.\r 1
The pilot’s failure to see and avoid the other airplane landing in the opposite direction on the runway. Contributing to the accident was the pilot’s failure to use the correct runway call sign in his radio communications. \r\n\r 1
The pilot's failure to follow the Before-Takeoff checklist and properly set the flaps before takeoff, which altered the airplane’s flight characteristics, and the pilot’s failure to recognize the problem and abort the takeoff in a timely manner, which resulted in a runway overrun. Contributing to the accident was the pilot’s lack of experience in the high-performance airplane.\r 1
The presence of debris in the carburetor and blockage of the fuel delivery system, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the lack of maintenance to the carburetor.\r 1
The pilot’s failure to follow ground control instructions and to see and avoid ground obstacles while taxiing. \r\n\r 1
The flight instructor's inadequate in-flight fuel management, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's inadvertent selection of the fuel selector handle to the off position, which resulted in fuel starvation and a total loss of engine power.\r 1
The pilot’s improper landing flare, which resulted in substantial damage.\r\n\r 1
The pilot's loss of directional control during landing. Contributing to the accident was the pilot's failure to attain a proper touchdown point, which required his use of heavy braking to stop on the remaining runway and exacerbated the uneven braking effectiveness of the main wheels.\r 1
The pilot’s unnecessary action during the approach, which resulted in a hard landing.\r\n\r 1
The pilot’s failure to maintain directional control of the airplane during landing with a tailwind. \r\n\r 1
The flight instructor’s delayed aborted takeoff on a soft, wet, grass runway, which resulted in a runway overrun.\r\n\r 1
The pilot’s decision to land with a tailwind and in his failure to maintain pitch control of the airplane in gusting wind conditions. \r\n\r 1
The pilot's failure to apply carburetor heat during the approach for a touch-and-go landing, which resulted in a total loss of engine power during the subsequent takeoff.\r 1
A collision with a large bird during approach.\r\n\r\n\r 1
The improper adjustment of the fuel pump by maintenance personnel, which resulted in an overly rich fuel/air mixture and a total loss of engine power.\r 1
The pilot’s unstabilized approach, which resulted in a long landing and subsequent runway overrun.\r\n\r 1
The loss of engine power due to fuel exhaustion.\r 1
The pilot’s decision to relinquish the helicopter flight controls to a non-rated passenger during a 3 ft hover. \r\n\r 1
A partial loss of engine power during initial climb for reasons that could not be determined because examination of the wreckage did not reveal any evidence of preimpact malfunctions or failures that would have precluded normal operation.\r 1
Both pilots’ and the flight instructor’s failure to identify, see, and avoid the other airplane, which resulted in a midair collision.\r 1
The pilot’s failure to maintain directional control during the landing roll in a gusting crosswind conditions, which exceeded the airplane’s maximum demonstrated crosswind and resulted in the collapse of the left main landing gear.\r\n\r 1
The pilot's decision to land in a gusty crosswind that exceeded the airplane's maximum demonstrated crosswind and resulted in a runway excursion. 1
A substantial oil leak, which resulted in a partial loss of engine power and failure of the No. 2 connecting rod.\r 1
The pilot’s failure to adequately monitor the environment and maintain a sufficient altitude to avoid power lines. \r\n\r\n\r 1
The flight instructor's failure to maintain directional control during landing, in cross wind conditions. 1
The glider pilot's inadequate flight planning, which resulted in an off-airport landing. 1
The pilot's selection of unsuitable terrain for takeoff, which resulted in a loss of control and runway excursion. 1
A partial loss of engine power due to an improperly secured throttle cable set screw. 1
The pilot's failure to verify that the fuel selector was properly set before takeoff, which resulted in a total loss of engine power due to fuel starvation. 1
The passengers' failure to comply with the fasten seatbelt sign, with resulted in their injury during an inflight turbulence encounter.\r 1
The flight crew's improper decision to deliberately operate the airplane at low altitude and along a flightpath that resulted in a collision with a pedestrian after takeoff. Contributing to the accident was the pedestrian's proximity to the runway. 1
The pilot's failure to maintain airspeed during the approach for landing, which resulted in an aerodynamic stall and the airplane's impact with terrain. 1
The flight instructor’s improper landing flare, which resulted in a hard landing.\r\n\r 1
The pilot's failure to see and avoid power lines due to sun glare.\r 1
The landing gear collapse due to the separation of the end fitting bolt for reasons that could not be determined based on the available evidence.\r 1
The pilot’s improper landing flare, which resulted in a loss of directional control and a nose-over.\r\n\r 1
The pilot’s failure to maintain the runway heading during the approach in gusting crosswind conditions. \r\n\r 1
Liberty Helicopters Inc.'s use of a NYONair-provided passenger harness/tether system, which caught on and activated the floor-mounted engine fuel shutoff lever and resulted in the in-flight loss of engine power and the subsequent ditching. Contributing to this accident were (1) Liberty's and NYONair's deficient safety management, which did not adequately mitigate foreseeable risks associated with the harness/tether system interfering with the floor-mounted controls and hindering passenger egress; (2) Liberty allowing NYONair to influence the operational control of Liberty's FlyNYON flights; and (3) the Federal Aviation Administration's inadequate oversight of Title 14 Code of Federal Regulations Part 91 revenue passenger-carrying operations. Contributing to the severity of the accident were (1) the rapid capsizing of the helicopter due to partial inflation of the emergency flotation system and (2) Liberty and NYONair's use of the harness/tether system that hindered passenger egress. 1
The student pilot’s improper landing flare in gusting crosswind conditions, which resulted in a bounced landing.\r\n\r 1
The pilot’s improper takeoff procedures and his failure to abort the takeoff, which resulted in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilot’s lack of experience in the airplane.\r 1
The pilot’s improper preflight inspection of the fuel level, which resulted in a loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s failure to lower the landing gear before the emergency landing.\r 1
The student pilot’s failure to maintain a stabilized approach, which resulted in overcorrection with the rudder during the landing, loss of control, and a runway excursion.\r\n\r 1
A total loss of engine power due to water contamination of the fuel system. Contributing to the accident was the pilot/owner's inadequate maintenance of the fuel caps. 1
A total loss of engine power due to oil starvation as a result of a loose oil line B-nut. \r 1
The pilot’s inadequate inflight fuel management and his failure to switch to a fuel tank with adequate fuel, which resulted in fuel starvation.\r\n\r 1
The gyroplane pilot's failure to maintain rotor speed and aircraft control as he was attempting to return to the runway during a low-altitude simulated engine-out maneuver. 1
The restricted cyclic control movement for reasons that could not be determined because postaccident examination and testing of the cyclic control system did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation.\r 1
The flight instructor's failure to maintain the appropriate glidepath to the runway, which resulted in a collision with trees and terrain during final approach.\r 1
The interruption of fuel to the engine during final approach, which resulted in a total loss of engine power due to fuel starvation, and the pilot's subsequent failure to maintain airspeed, which resulted in an aerodynamic stall. 1
The pilots' inadequate preflight inspection, which failed to ensure that the oil filler cap was secured and resulted in oil starvation and a total loss of engine power.\r 1
A deer collided with aircraft during landing at night. \r\n\r 1
The pilot's improper landing flare, which resulted in the airplane ballooning on touchdown, and his subsequent failure to maintain directional control during the attempted landing and subsequent go-around.\r 1
The pilot’s failure to detect water in the fuel system during the preflight inspection, which resulted in a loss of engine power during departure and a subsequent impact with terrain. \r\n\r 1
Impact with powerlines and terrain after takeoff for reasons that could not be determined based on the available information. \r 1
The inadequate service and repair of the airplane's carburetor, which led to a partial loss of engine power during takeoff and resulted in a forced landing. 1
The pilot’s failure to recognize and compensate for hazards during the external load operation, which led to a collision between a lineman (external load) and a powerline. 1
An engine malfunction for undetermined reasons and the subsequent loss of control, due to the pilot's improper decision to maneuver the airplane below minimum controllable airspeed and his improper response to the loss of engine power.\r\n\r 1
The pilot’s improper application of the brakes during landing, which resulted in a nose-over.\r 1
The failure of the fuel selector valve in a nearly closed position, which resulted in a partial loss of engine power due to fuel starvation. 1
The pilot’s failure to manage the airplane’s fuel supply, which resulted in fuel starvation. Contributing to the accident was the pilot’s decision to attempt the flight with an inoperative fuel gauge.\r\n\r 1
The pilot’s failure to maintain directional control of the airplane during landing. \r\n\r 1
The pilot’s failure to extend the landing gear and the flight instructor’s failure to ensure that the landing gear were extended during landing. Contributing to the accident were the pilot’s and the instructor’s improper use of checklist. \r\n\r 1
The pilot's failure to maintain directional control during the landing roll in tailwind conditions. 1
The pilot’s failure to extend the landing gear for a landing.\r 1
The pilot’s failure to maintain rotor rpm during a practice autorotation, which resulted in ground contact and a dynamic rollover.\r 1
The airplane’s collision with deer during the landing roll. \r 1
The operator’s use of improper fuel, which resulted in partial loss of engine power due to vapor lock.\r 1
The pilot's decision to land the airplane with a tailwind, which led to a runway excursion. Contributing to the pilot's decision to land with a tailwind was a partial loss of engine power due to his failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice.\r 1
The student pilot’s rapid lowering of the collective, which resulted in a hard landing. \r\n\r 1
The pilot’s failure to maintain directional control during initial climb in a gusty condition.\r\n\r 1
The pilot's failure to maintain adequate clearance from powerlines during landing approach, which resulted in an inflight collision with the powerlines.\r 1
The pilot's failure to maintain adequate airspeed while departing in instrument meteorological conditions, moderate turbulence, and low-level wind shear, which resulted in the airplane exceeding its critical angle of attack and a subsequent aerodynamic stall. \r\n\r 1
The pilot's diverted attention, which resulted in his inadequate monitoring of the airplane's attitude and a loss of control in flight.\r 1
The helicopter pilot's failure to maintain adequate clearance during power line construction work, which resulted in the helicopter's main rotor striking and becoming entangled with a wire and a subsequent dynamic rollover and collision with terrain. Contributing to the accident was the pilot's and linemen's decision to continue work without a secondary safety device installed, which was contrary to standard operating procedures. 1
The student pilot’s failure to maintain clearance from a stationary pole while parking. \r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r\n\r 1
The pilot receiving instruction’s failure to maintain directional control during the landing roll. \r\n\r 1
The flight instructor's failure to maintain airplane control during the initial climb as a result of the airplane being loaded above its maximum gross weight and beyond its aft center of gravity limits. Contributing to the accident was a degraded engine power output due to a preexisting engine cylinder intake valve spring failure, which further reduced the airplane's climb capability.\r\n\r\n \r\n\r\n \r\n\r\n \r\n\r\n \r\n\r 1
The pilot’s failure to maintain directional control of the airplane during landing. \r\n\r 1
The pilot receiving instruction and flight instructor’s failure to properly configure the landing gear before landing, which resulted in landing with the landing gear retracted. \r\n\r 1
The pilot's decision to continue a visual flight rules flight into an area of instrument meteorological conditions and his subsequent failure to level the airplane after the autopilot disconnected, which resulted in a collision with terrain. \r 1
The pilot receiving instruction’s abrupt cyclic control input during the touch-down autorotation.\r\n\r 1
The pilot’s failure to maintain clearance from trees during the approach to land due to the sun glare.\r\n\r 1
The pilot’s improper landing flare, which resulted in a hard landing. \r\n\r 1
The pilot’s failure to secure the canopy before flight, which resulted in the airplane striking a fence during the approach. Contributing to the accident was the pilot’s failure to follow the Before Takeoff checklist and In-flight Canopy Opening checklist emergency procedure.\r\n\r 1
A total loss of engine power due to air or fuel vapor entering the fuel system, which prevented fuel from reaching the engine cylinders, which necessitated an emergency landing, during which the airplane nosed over. \r 1
The pilot's failure to maintain control of the glider for reasons that could not be determined based on the available evidence. 1
The pilot’s failure to maintain lateral control while taxiing onto the runway in gusting wind conditions.\r\n\r 1
An in-flight fire and subsequent total loss of engine power for reasons that could not be determined due to extensive impact and fire damage, followed by a loss of airplane control. 1
An inflight loss of control due to failure of the weight-shift-control aircraft's wing assembly.\r 1
The pilot’s loss of directional control and long landing in gusting wind conditions due to his shoe getting stuck on the brakes. \r\n\r 1
The pilot's decision to continue flight in known icing conditions, which resulted in structural icing, degraded airplane performance, and a subsequent loss of control. Contributing to the accident was the pilot's failure to obtain an official weather briefing before departure. 1
An in-flight impact with terrain for reasons that could not be determined due to a lack of evidence. 1
The pilot's loss of control while operating in night instrument meteorological conditions as a result of spatial disorientation. Contributing to the accident was the pilot's decision to operate an airplane after consuming alcohol and his resulting intoxication, which degraded the pilot's judgment and decision-making. 1
The pilot’s landing long in tailwind conditions with insufficient runway remaining to stop the airplane.\r\n\r 1
A low-cycle fatigue crack in the dovetail of fan blade No. 13, which resulted in the fan blade separating in flight and impacting the engine fan case at a location that was critical to the structural integrity and performance of the fan cowl structure. This impact led to the in-flight separation of fan cowl components, including the inboard fan cowl aft latch keeper, which struck the fuselage near a cabin window and caused the window to depart from the airplane, the cabin to rapidly depressurize, and the passenger fatality. 1
The pilot’s failure to maintain lateral control during landing in crosswind conditions.\r\n\r 1
The student pilot’s improper landing flare and the flight instructor’s delayed remedial action, which resulted in a hard landing.\r\n\r 1
The pilot’s failure to properly secure the portable GPS and antenna cable, which resulted in the inadvertent landing gear retraction during landing. \r\n\r 1
The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's failure to perform the loss of engine power emergency procedures, which likely would have restored engine power. \r 1
The failure of the weld on the airplane’s left main landing gear axle support strut during landing, which resulted in a loss of directional control. \r\n\r 1
The pilot’s incorrect pitch input during a water landing, which resulted in a nose-over. Contributing to the accident were the pilot’s inadequate training and experience in the make and model airplane. \r\n\r 1
The pilot’s failure to maintain directional control during landing\r\n\r 1
The student pilot’s failure to maintain a proper landing flare, which resulted in a porpoised landing.\r\n\r 1
A total loss of engine power due to the fatigue failure of the crankshaft, which resulted in the pilot’s forced landing to an abandoned airport and the airplane’s subsequent impact with debris on the runway. \r\n\r\n\r 1
The pilot's decision to continue the night visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. Contributing was the pilot's lack of instrument/night currency, and his failure to request additional assistance from air traffic control. 1
The pilot's failure to maintain directional control during a rejected takeoff. Contributing to the accident was the binding of the control stick, for an undetermined reason, which precipitated the rejected takeoff. 1
The pilot's exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall/spin.\r\n\r\n \r\n\r 1
The failure of the left main landing gear axle weld during the landing roll. \r\n\r 1
The pilot's failure to maintain directional control during landing with a crosswind, which resulted in a loss of control and failure of the main landing gear. Contributing to the accident was the pilot's self-induced pressure to land.\r 1
The pilot's failure to maintain clearance with power lines while maneuvering during an aerial application flight. 1
The pilot’s failure to maintain directional control during the takeoff roll resulting impact with PAPI lighting. \r\n\r 1
The failure of ground personnel to obtain permission from airport management to conduct engine test runs; adequately monitor the area behind the B737 for traffic; and install barricades to prevent access behind the running airplane, which resulted in the accident pilot's loss of control during taxi due to an encounter with the jet blast. Contributing to the accident were the accident pilot's failure to detect that the B737 engines were running, and the airport management's failure to establish written standard operating procedures regarding engine runs.\r 1
The balloon pilot’s decision to add heat to the envelope with a tree branch protruding into the envelope that caught fire.\r\n\r 1
Descent and impact with terrain for reasons that could not be determined. 1
The pilot’s hard landing and subsequent failure to maintain airspeed and bank control during the aborted landing, which resulted in an aerodynamic stall. \r\n\r 1
The pilot’s failure to maintain an adequate approach path and runway centerline during the initial landing, which resulted in a hard landing to the left of the runway and damage to the landing gear and wing.\r\n\r 1
The pilot’s failure to properly set the parking brake, which resulted in an impact with a pole.\r\n\r 1
The noncertificated pilot's unfamiliarity with the airplane, which resulted in a loss of airplane control when the pilot encounter a wind gust.\r\n\r\n\r 1
The pilot’s failure to maintain a proper landing flare, which resulted in a hard landing.\r\n\r 1
A total loss of engine power due to carburetor ice accumulation. Contributing to the accident was the pilot’s failure to apply carburetor heat immediately following the loss of engine power.\r 1
The pilot's spatial disorientation after entering instrument meteorological conditions and encountering moderate-to-heavy precipitation, which resulted in a loss of airplane control. 1
The student pilot’s failure to maintain directional control during landing after touching down with the left brake engaged. Contributing to the accident was the flight instructor’s delayed remedial action.\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack while maneuvering in the airport traffic pattern, which resulted in an aerodynamic stall and subsequent spin. 1
The student pilot’s improper selection of the flap setting during a go-around, and the flight instructor’s delayed remedial action, which resulted in an aerodynamic stall.\r\n\r 1
The pilot’s failure to maintain the proper descent rate during the balloon’s approach to landing, which resulted in a hard landing and serious passenger injury. 1
The pilot’s failure to maintain directional control during landing. Contributing to the accident was the flight instructor’s delayed remedial action.\r\n\r 1
The failure of both pilots to see and avoid the other airplane as they converged on intersecting runways. Contributing to the accident was the jet pilot's not monitoring the airport's traffic advisory frequency, known reduced visibility of the intersecting runways, and hazy weather condition.\r\n\r 1
The noncertificated pilot's poor decision to depart on a flight over mountainous terrain in an improperly maintained airplane, and the subsequent encounter with mountain wave turbulence, which resulted in the loss of airplane control and impact with terrain. Contributing to the accident was the pilot's inadequate preflight weather planning. 1
Extensive fatigue cracking in the left-wing main spar lower cap and doublers, which resulted in the in-flight separation of the left wing. The fatigue cracks initiated and grew to a critical size due to flight and ground loads associated with flight-training involving flight-training maneuvers, significant operation at low altitudes and frequent landing cycles. Previously established inspection criteria were insufficient to detect the fatigue crack before it grew to a critical size. 1
The student pilot and flight instructor's failure to see and avoid the stationary airplane during taxi, which resulted in a ground collision.\r 1
The student pilot’s failure to maintain runway centerline and flight instructor’s delayed remedial action during landing.\r\n\r 1
The pilot's flight in dark night visual meteorological conditions, which resulted in an impact with water for reasons that could not be determined based on the available information. 1
The pilot receiving instruction’s and flight instructor’s improper decision to enter a canyon surrounded by steep rising terrain and their subsequent failure to maintain clearance from terrain while maneuvering at a low altitude. \r\n\r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during the approach to land, which resulted in an aerodynamic stall.\r\n\r 1
The failure of an electric fuel pump, which resulted in fuel starvation and a total loss of engine power during cruise flight. 1
The pilot’s improper brake application during landing, which resulted in a tire blowout and a loss of directional control.\r\n\r 1
The airplane’s inadvertent encounter with unforecasted icing conditions during cruise flight, which resulted in the accumulation of airframe icing, the airplane’s inability to maintain altitude, and a subsequent forced landing on rough terrain.\r 1
The pilot’s failure to establish the proper airspeed after departure and to maintain adequate clearance from a ridgeline in high-density and downdraft conditions and his subsequent exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall with insufficient altitude to recover. Contributing to the accident was the pilot’s inadequate preflight weight and balance calculations, which failed to take into account the gross weight, high-altitude conditions, and center of gravity limit. \r\n\r 1
A total loss of engine power due to fuel starvation. Contributing to the accident was the failure of the pilot/owner to ensure that the airplane was airworthy before flight. 1
The pilot's failure to maintain adequate altitude above mountainous terrain during cruise flight in dark night conditions, which resulted in controlled flight into terrain. 1
The student pilot’s inadvertent shutting off of the fuel valve while on approach, which resulted in a loss of engine power due to fuel starvation and impact with terrain.\r 1
The failure of the left starter relay during engine start, which resulted in a loss of electrical and battery power during the flight and led to a forced landing with the nose landing gear not fully extended, causing substantial damage to the engines. 1
The noncertificated pilots’ failure to maintain an adequate visual lookout, which resulted in a midair collision.\r 1
The pilot's failure to maintain adequate clearance from powerlines. \r 1
The pilot's failure to see and avoid the power line. Contributing to the accident was the pilot’s intentional flight at low altitude. 1
The pilot's failure to maintain airplane control during the approach and his delayed decision to go around. 1
The pilot’s inadvertent landing gear retraction during approach.\r\n\r 1
The noncertificated pilot's failure to maintain helicopter control during takeoff. Contributing to the accident were the pilot's lack of recent flight experience and his lack of training and experience in the accident helicopter make and model. 1
A hydraulic leak in the right main landing gear actuator, which resulted in the main landing gear not extending.\r 1
The pilot's unsafe maneuvering and exceedance of the airplane's operating limitations, which resulted in an in-flight failure of the left wing. Contributing to the accident was the pilot's underlying physiologic or psychiatric disease.\r\n\r 1
The student pilot's failure to maintain yaw control while landing in gusting crosswind conditions and the flight instructor's delayed remedial action. \r\n\r\n \r\n\r 1
Maintenance personnel’s improper maintenance of the engine, which resulted in a catastrophic engine failure due the shifting/slipping of the No. 2 bearing and the subsequent oil starvation and total loss of engine power during cruise flight.\r 1
The partial loss of engine power during the initial climb due to a stuck intake valve on the No. 4 cylinder. 1
The instructor pilot’s inadequate preflight fuel planning, which resulted in fuel exhaustion and a total loss of engine power. 1
The pilot's failure to maintain directional control during landing for reasons that could not be determined based on the available evidence.\r 1
The student pilot’s improper approach and landing flare, which resulted in a porpoised landing.\r\n\r 1
The pilot’s improper decision to attempt to take off in the gyroplane in strong gusting crosswind conditions, with insufficient distance to safely abort, which resulted in a loss of control and impact with a ditch and road embankment. \r 1
The ground vehicle driver’s decision to drive on an active taxiway at night and failure to yield to taxiing aircraft, resulting in a collision with a taxiing aircraft. \r\n\r 1
The student pilot’s improper landing flare in gusting crosswind conditions, which resulted in a hard, bounced landing.\r\n\r 1
The airplane pilot’s failure to see and avoid the helicopter while in the traffic pattern, which resulted in a midair collision between the two aircraft. Contributing to the accident was the airplane pilot’s misunderstanding of the helicopter pilot’s intentions and the airplane pilot’s expectation that the helicopter would be clear of the runway.\r 1
A loss of control following the gunner's failure to ensure that the net maintained clearance from the tail rotor. 1
The pilot's inadequate preflight fuel planning and his improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot's failure to maintain directional control during takeoff after a total loss of left engine power due to fuel contamination, which resulted in impact with trees. Contributing to the accident were the mechanic's failure to properly flush the fuel system during the annual inspection. 1
The pilot's mismanagement of fuel, which resulted in fuel exhaustion and descent and collision with trees. 1
A loss of engine power due to snow or ice ingestion at an altitude that was insufficient to allow for engine re-ignition. Contributing to the accident were conditions, including altitude and flat light conditions, that precluded a successful autorotation to the field. 1
The pilot’s inability to maintain the landing flare, which resulted in the airplane landing hard short of the runway. Contributing to the accident was the cockpit canopy opening in flight.\r\n\r 1
A loss of hydraulic fluid due to a fatigue failure of the right main landing gear hydraulic actuator, which resulted in the pilot's inability to fully extend the landing gear and a main landing gear collapse during the landing roll.\r 1
A loss of helicopter control for reasons that could not be determined because postaccident examination did not reveal any evidence of mechanical malfunctions or failures of the main rotor and tail rotor systems that would have precluded normal operation.\r 1
The flight crew's improper decision to land on a snow-covered runway that had insufficient runway distance for the airplane to land with the contamination, which resulted in a runway overrun and impact with obstacles. \r 1
The pilot’s inadvertent landing in snow adjacent to the snow-covered runway resulting in a collision with runway signs. \r 1
The loss of engine power while the motor-powered glider was maneuvering due to the fuel unporting in its fuel tank, which resulted in fuel starvation and a subsequent forced landing on unsuitable terrain.\r 1
The pilot's failure to maintain clearance from the water while flying over a lake with glassy surface conditions. Contributing to the accident was the pilot's use of three impairing medications. 1
The fatigue failure of the left main landing gear (MLG) saddle, which resulted in the pilot's inability to extend the left MLG. Contributing to the accident was the pilot's improper decision to fly the airplane before the annual inspection was completed and the airplane returned to service in an airworthy condition. \r\n\r\n \r\n\r 1
the flight crew's misidentification of the taxiway as the landing runway due to the failure of the runway lighting that caused only the taxiway lights to be illuminated. 1
The failure of the left main landing gear assembly due to a fatigue fracture along the inside circumferential weld on the trailing arm’s attachment flange, which resulted from the manufacturer’s inadequate welding of the trailing arm connecting the lower arm tube to the inside attachment flange. \r 1
The pilot’s geographic disoriention during a night flight, which resulted in an off-airport landing.\r\n\r 1
A collapse of the right main landing gear during the landing roll because the gear would not lock into place. Contributing to the accident was the pilot's failure to perform the alternate landing gear extension procedure before landing. 1
The pilot's incapacitation resulted in impact with the Gulf of Mexico. The reason the hypoxia recognition system did not descend the airplane as designed could not be determined as the airplane was not located.\r 1
The total loss of engine power for reasons that could not be determined because a postaccident examination of the engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation. 1
Maintenance personnel’s failure to properly secure the tail rotor drive shaft cover, which resulted in the cover departing the helicopter in flight.\r 1
The pilot's loss of directional control during takeoff with a quartering tailwind, which resulted in a runway excursion. 1
The pilot’s failure to apply carburetor heat during the approach, which resulted in a loss of engine power due to carburetor icing.\r\n\r\n\r 1
The loss of engine power for reasons that could not be determined because a postaccident engine test run showed no anomalies that would have precluded normal operation, and the pilot's decision to conduct the flight at a low altitude. 1
The pilot’s incorrect brake application during the landing roll, resulting in a nose over.\r\n\r 1
The pilot’s improper wind correction inputs while taxiing with a quartering tailwind.\r\n\r 1
The pilot's failure to maintain directional control while taxiing in gusting tailwind conditions.\r\n\r\n \r\n\r 1
The helicopter pilot's improper decision to use an open-end grapple, instead of an A-frame attachment, to lift and move a ladder with a lineman on it and the lineman's improper decision to be lifted on a ladder via an open-end grapple, which were contrary to company policy and the Federal Aviation Regulations. 1
The pilot's inadequate preflight weather planning, which resulted in the flight over mountainous terrain into forecast instrument meteorological conditions, icing, and mountain wave, and resulted in an uncontrolled descent and collision with terrain. \r\n\r\n\r\n\r\n\r\n\r 1
The pilot’s failure to maintain directional control and her use of excessive braking during landing, which resulted in a nose-over. \r\n\r 1
The pilot’s selection of unsuitable terrain for takeoff, which resulted in a loss of directional control.\r\n\r 1
The pilot’s failure to maintain clearance from a stationary helicopter during landing. Contributing to the accident was the ground crew’s failure to ensure that the helicopter would clear the stationary helicopter. \r\n\r 1
The collapse and separation of the right landing gear suspension strut due to overload. \r\n\r\n\r 1
The student pilot and flight instructor’s failure to see and avoid powerlines during a simulated emergency landing, which resulted in a wire strike during a go-around. \r\n\r 1
The control stick handgrip separation from the control stick resulting in the airplane pitching forward, which resulted in hard landing. \r\n\r 1
The pilot’s inadequate preflight fuel planning and in-flight fuel monitoring and his decision to take off with an unverified amount of fuel, which resulted in fuel exhaustion and a subsequent impact with trees during an attempted forced landing.\r 1
A total loss of engine power for reasons that could not be determined because a postaccident examination of the airplane revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot’s diverted attention to his phone while maneuvering at a low altitude, which resulted in collision with terrain.\r\n\r 1
The partial loss of engine power after a simulated engine failure for reasons that could not be determined because a postaccident examination and an engine test run did not reveal any anomalies that would have precluded normal operation. \r 1
A total loss of engine power due to fuel starvation, which resulted from the pilot’s failure to ensure that adequate fuel was on board for the flight. Contributing to the accident was the pilot’s self-induced pressure to complete the flight due to impending rain.\r 1
A total loss of engine power due to fatigue failure of the crankshaft drive gear teeth. \r 1
The pilot’s failure to maintain adequate clearance from terrain while maneuvering the helicopter at a low altitude after departure. Contributing to the accident were the pilot’s distraction by the smoke in the cabin and the limited visible features in the snow-covered field to discern the helicopter’s height above the ground.\r 1
The flight instructor’s abrupt evasive maneuver to avoid a reported unmanned aerial system, which resulted in a loss of forward airspeed and settling with power and a subsequent collision with trees and terrain. \r 1
The pilot’s failure to extend the landing gear due to his distraction by talking on the radio, which resulted in a gear-up landing.\r\n\r 1
The pilot’s failure to maintain directional control during the landing roll and the flight instructor’s delayed remedial action, which resulted in a groundloop and nose over. \r\n\r\n\r 1
The pilot’s failure to maintain directional control of the airplane during the landing roll in gusting wind conditions. \r\n \r 1
The pilot’s failure to maintain directional control during the landing roll on a wet surface.\r\n\r 1
The pilot’s selection of unsuitable terrain for landing, which led to both skis breaking through the ice while positioning the airplane after landing.\r 1
The seizure of the propeller gearbox for reasons that could not be determined based on the available information, which resulted in a forced landing.\r 1
The helicopter’s striking of a pothole while taxiing, which resulted in the right main landing gear collapsing.\r\n\r 1
The pilot’s failure to maintain directional control during the landing roll resulting in a ground loop.\r\n\r 1
The pilot's loss of airplane control due to spatial disorientation while maneuvering in instrument meteorological conditions. Contributing to the accident was the pilot's impairment from the use of a sedating antihistamine.\r\n\r\n \r\n\r\n \r\n\r\n \r\n\r 1
The pilot’s failure to extend the landing gear before landing. Contributing to the accident were pilot fatigue and his failure to use the before landing checklist. \r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack during an attempted return to the runway following a total loss of engine power after takeoff, which resulted in an aerodynamic stall. Contributing to the accident was the excessive amount of fuel being delivered to the engine for reasons that could not be determined based on the available information. 1
An improperly installed brake cylinder, which resulted in insufficient hydraulic pressure being provided to three of the brake cylinders and the left brake being inoperable during landing. \r 1
A partial loss of engine power due to a stuck exhaust valve. Contributing to the accident was the pilot's decision to operate an airplane with a known mechanical deficiency and his failure to fly an appropriate traffic pattern that would have allowed the airplane to reach the runway. 1
The noninstrument-rated pilot's continued flight into a region of deteriorating ceiling and visibility conditions, which resulted in controlled flight into terrain event. 1
The pilot receiving instruction’s failure to see and avoid an airplane holding short of the runway on the taxiway and the flight instructor’s lack of situational awareness. \r\n\r 1
An inflight loss of control and collision with terrain for reasons that could not be determined. 1
The pilot's inadequate preflight fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power and impact with a pole during a forced landing.\r 1
The flight instructor’s failure to maintain directional control during the landing roll in gusting crosswind and tailwind conditions.\r\n\r 1
The glider instructor's delayed remedial action when the glider became out of position during aerotow, which resulted in excessive side-loading of the release hook and a delay in the glider's release from tow, which resulted in the towplane’s descent and impact with trees.\r 1
The pilot's failure to maintain airplane control while taxing in gusty wind conditions. 1
The pilot’s distraction due to her malfunctioning iPad, which led to her inadvertent forward cyclic application. \r 1
The pilot’s selection of unsuitable terrain for landing, which resulted in a dynamic rollover.\r 1
The pilot's exceedance of the weight-shift-control aircraft's critical angle of attack while maneuvering for landing, which resulted in an aerodynamic stall and collision with terrain. Contributing to the accident was the pilot's lack of experience in the accident aircraft. 1
The pilot’s failure to maintain directional control during takeoff. Contributing to the accident was the pilot’s failure to properly check that the flight controls were correctly configured before takeoff. \r\n\r 1
The pilot's failure to maintain clearance from a tree for reasons that could not be determined based on the available evidence. 1
The improper reinstallation of the right main landing gear by maintenance personnel which resulted in the separation of the landing gear and the subsequent abnormal runway contact during the landing. 1
The pilots' spatial disorientation while maneuvering for landing in night conditions over unlighted terrain, which resulted in an uncontrolled descent and impact with water. 1
The passenger’s gun becoming lodged in the flight controls during takeoff and his failure to remove it, which resulted in impact with terrain.\r\n\r 1
the fracture of a fan blade due to P&W's continued classification of the TAI inspection process as a new and emerging technology that permitted them to continue accomplishing the inspection without having to develop a formal, defined initial and recurrent training program or an inspector certification program. The lack of training resulted in the inspector making an incorrect evaluation of an indication that resulted in a blade with a crack being returned to service where it eventually fractured. \r\n\r\nContributing to the fracture of the fan blade was the lack of feedback from the process engineers on the fan blades the inspectors sent to the process engineers for evaluation of indications that they had found. 1
The pilot's failure to maintain clearance from terrain during a visual approach in dark night visual meteorological conditions, which resulted in controlled flight into terrain. 1
The pilot's exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall/spin.\r 1
The pilot's failure to fully open the throttle before initiating the power recovery in response to a simulated engine failure. 1
The pilot’s decision to takeoff in gusting wind conditions with insufficient rotor rpm.\r\n\r 1
The pilot's failure to perform weight and balance calculations before departing on the flight, which resulted in his operation of the helicopter outside of its published weight and balance limitations and a subsequent loss of control shortly after takeoff. 1
The pilot's mismanagement of the available fuel, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's failure to follow the air start checklist. 1
The pilot’s high altitude, high gross weight landing with insufficient tail rotor thrust resulting in a loss of tail rotor effectiveness.\r\n\r 1
The pilot’s failure to maintain directional control during landing due to being distracted by another airplane and her delayed initiation of a go-around, during which the right wing struck a parked helicopter.\r\n\r 1
The pilot’s failure to see the taxiway when returning to the ramp from the snow-covered runway, which resulted in the airplane rolling down an embankment.\r\n\r 1
The pilot’s improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent off-airport landing and nose-over.\r\n\r 1
A loss of engine power for reasons that could not be determined because the airplane was not recovered. Also causal was the pilot's decision to conduct a low-altitude turn following the loss of engine power, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall. 1
The airplane's reduced braking performance due to an ice-covered runway, which resulted in a runway excursion. Contributing to the accident was the crew's selection of a runway with a tailwind.\r 1
The pilot's decision to take off into instrument meteorological conditions that resulted in spatial disorientation, and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. 1
The pilot's inadequate in-flight fuel management, which resulted in a dual loss of engine power due to fuel exhaustion. 1
The pilot's improper approach and landing flare in dark night, which resulted in a bounced landing. 1
The pilot's failure to maintain adequate clearance from trees while landing in crosswind conditions.\r\n\r 1
The failure of pilot to extend the landing gear during landing. \r\n\r 1
The pilot’s decision to exit the paved runway into soft terrain, which resulted in a ground loop and landing gear collapse.\r\n\r 1
The pilot's failure to use the published emergency procedures to manually extend the landing gear when an electrical failure precluded normal extension of the landing gear, resulting in the gear collapse during landing. Contributing to the accident was the pilot’s failure to ensure, before takeoff, that the battery was fully charged after its depletion due to a faulty alternator. 1
An in-flight control system flutter encounter during a turbulence encounter; the reason for the flutter could not be determined. 1
The pilot-receiving-instruction’s failure to maintain directional control during takeoff. \r\n\r 1
The pilot's inability to gain altitude normally in order to avoid a flock of ducks flying overhead during takeoff, which resulted in the airplane striking a fence.\r\n\r 1
The pilot’s failure to maintain directional control during the landing roll in gusting crosswind conditions.\r 1
A loss of tail rotor effectiveness, the pilot’s subsequent loss of helicopter control, and collision with terrain during an approach to land in gusting, tailwind conditions in an area of potential downdrafts and turbulence. \r 1
An undetected fluid leak in the right brake line, which resulted in a reduction of braking effectiveness at the right wheel and a loss of directional control during the landing roll. 1
The flight instructor’s failure to maintain directional control during the landing roll and lateral control during the go-around in gusting crosswind conditions. Contributing to the accident was the lack of communication between the flight instructor and the pilot receiving instruction. \r\n\r 1
The driveshaft fracture due to overstress loading and rotational bending as a result of the under-torqued nuts on the elastomeric couplings backing off and the subsequent in-flight separation of the horizontal fairing due to contact with the separated end of the driveshaft, which led to a loss of control. Contributing to the accident was inadequate maintenance. \r\n\r\n \r\n\r\n \r\n\r\n \r\n\r 1
The pilot’s failure to maintain an adequate approach path to an unimproved airstrip, which resulted in a hard landing short of the airstrip.\r\n\r 1
The pilot’s failure to maintain crosswind correction during landing and the flight instructor’s delayed remedial action. Contributing to the accident was the pilot’s and flight instructor’s decision to land with gusting tailwinds.\r\n\r 1
The pilot’s failure to maintain clearance from an elk while maneuvering at a low altitude.\r\n\r 1
The pilot's improper decision to take off with known electrical issues, which distracted him and led to a loss of directional control during the takeoff roll. \r\n\r\n \r\n\r 1
The pilot's failure to maintain clearance from another airplane during the line-abreast formation. 1
The pilot's failure to maintain control of the airplane while maneuvering for landing with one engine inoperative following a loss of engine power for reasons that could not be determined based on the available information. \r 1
A partial loss of engine power for reasons that could not be determined during postaccident examination in combination with the low cruise altitude selected by the pilots, which resulted in an ocean ditching. The lack of personal flotation devices likely contributed to the drowning of one of the pilots. 1
A partial loss of engine power during initial climb for reasons that could not be determined and the pilot's subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. 1
The pilot’s distraction during liftoff due to the tail rotor chip warning light illuminating, which resulted in the helicopter drifting right, the skid touching down, and a dynamic roll-over.\r\n\r 1
The pilot’s failure to maintain directional control while landing in gusting wind conditions. Contributing to the accident was the pilot’s failure to go around after the unstabilized approach.\r\n\r 1
The pilot’s failure to maintain directional control of the airplane during the landing roll. \r 1
The pilot’s failure to maintain the proper airspeed and his exceedance of the glider’s critical angle of attack, which resulted in a stall/spin.\r\n\r 1
The pilot's failure to maintain pitch control during the takeoff roll during an attempted takeoff. Contributing to the accident was the pilot's selection of takeoff flaps after he began the takeoff roll. 1
The flight instructor’s inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot’s inability to properly control engine power because of an improperly installed throttle control arm, which resulted in a partial loss of engine power and led to a forced landing. 1
The pilot’s improper landing flare, which resulted in a bounced landing, and his subsequent incorrect brake application, which led to the loss of directional control.\r 1
The pilot's loss of directional control after landing for reasons that could not be determined because an examination of the airplane did not reveal any anomalies that would have precluded normal operation. 1
The pilot's failure to maintain adequate airspeed, which resulted in a loss of tail rotor effectiveness during a low-altitude orbiting maneuver and a subsequent hard landing. 1
A total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's use of two psychoactive substances, which led to his impaired decision to attempt to takeoff after engine issues became evident. 1
The pilot’s failure to see and avoid power lines while maneuvering at a low altitude. Contributing to the accident was the pilot’s failure to adequately identify hazards to flight during agricultural application operation planning. \r 1
The pilot’s inadvertent application of the brakes during the landing roll, which resulted in a nose-over and substantial damage to the rudder and wings.\r 1
The student pilot’s failure to maintain directional control during the takeoff roll and the flight instructor’s delayed remedial action.\r\n\r 1
The failure of the metal core assembly within a wooden main rotor blade due to undetected corrosion and fatigue, which caused the wooden blade to separate from the rotor mast. 1
A total loss of engine power due to fuel contamination with water and the pilot's inadequate preflight inspection that detected, but did not fully resolve, the water contamination of the fuel system.\r 1
The total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the engine revealed no mechanical failure or malfunction that would have precluded normal operation.\r\n\r 1
The helicopter pilot’s miscommunication with the ground crewmember during reloading operations, which resulted in a takeoff with the filler hose attached to the helicopter and subsequent impact with a truck. \r 1
The pilots' inadequate preflight inspection, during which they failed to adequately verify the quantity of fuel, which resulted in fuel exhaustion, a subsequent total loss of power to both engines, and a forced landing into trees. Contributing to the accident were the erroneous fuel quantity displayed by the fuel quantity indicating system fuel sender units and the operator's failure to comply with a mandatory service bulletin addressing inaccuracies in the fuel quantity indicating system. 1
The pilot’s failure to maintain clearance from a building during landing. \r 1
The pilot’s improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control during the landing roll.\r\n\r 1
The pilot's decision to maneuver an overgross weight helicopter at a low altitude and airspeed with a gusting tailwind, which resulted in a high descent rate and collision with terrain. Contributing to the accident was the pilot's self-induced pressure to complete the operations due to a delay before the operations began.\r\n\r 1
The pilot's failure to maintain proper lateral/bank control during the landing in gusting wind conditions, which resulted in a nose-over into water. 1
The pilot’s failure to extend the landing gear before touchdown. \r\n\r 1
The separation of the mixture control cable from the mixture control lever at the carburetor, which resulted in the partial loss of engine power.\r 1
The pilot's incapacitation due to a cardiac event, which resulted in a loss of airplane control. 1
The pilot's decision to fly at low altitude in the vicinity of power lines, which resulted in a wire strike. 1
The pilot’s failure to maintain separation from another airplane in the run-up area while taxiing. \r\n
\r 1
The pilot's failure to maintain the proper airspeed and his exceedance of the airplane's critical angle of attack during landing, which resulted in an aerodynamic stall at an altitude too low for him to recover. 1
The pilot's selection of a grass airstrip that was of insufficient length for landing, and his exceedance of the airplane's critical angle of attack during the go-around, which resulted in an aerodynamic stall. 1
A partial loss of engine power for reasons that could not be determined because a postaccident examination did not reveal any anomalies that would have precluded normal engine operation. \r 1
A total loss of engine power as a result of the loss of all electric fuel pumps due to a loss of electric power because of the installation of an improper battery on the airplane and the use of improper charging cables on the battery. 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot’s inability to maintain adequate airspeed after a loss of power to the right engine while maneuvering in the pattern to return to the airport. Contributing to the accident were the loss of power to the right engine for reasons that could not be determined and the pilot’s improper decision to turn toward the inoperative engine during the return flight to the airport.\r 1
A total loss of engine power for reasons that could not be determined due to extensive damage. \r 1
The loss of engine power due to fuel starvation for reasons that could not be determined because an examination of the airplane and engine did not reveal any malfunctions or failures that would have precluded normal operation. 1
The flight instructor’s delayed remedial action, which resulted in a loss of helicopter control due to a loss of tail rotor effectiveness.\r\n\r 1
The pilot's failure to maintain adequate separation from power lines, which resulted in a loss of helicopter control. 1
The pilot's decision to fly with his large dog in the two-seat, light sport airplane, and the dog's likely contact with the flight controls during landing, which resulted in the pilot's loss of airplane control and a subsequent aerodynamic stall when the airplane exceeded its critical angle of attack. 1
A loss of control and subsequent in-flight breakup for reasons that could not be determined based on the available information. 1
The noninstrument-rated pilot's continued visual flight rules flight into adverse weather conditions, which resulted in an encounter with severe convective activity, spatial disorientation, a loss of airplane control, and a subsequent in-flight breakup. Contributing to the accident was the pilot's inadequate preflight weather planning. 1
The flight instructor's failure to maintain control of the aircraft while demonstrating a spiral dive, which resulted in a loss of control. Contributing to the accident was the instructor's decision to demonstrate a spiral dive maneuver at an altitude that was too low for recovery. 1
the A321 flight crew's incorrect evaluation of the clearance between the aircraft, leading to the inadvertent collision with the horizontal stabilizer of the CRJ200. Contributing to the accident was traffic congestion that resulted in the CRJ200 having to stop prior to fully clearing the perpendicular taxiway. 1
The pilot's failure to maintain airspeed during a climbing turn after takeoff and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall/spin at an altitude too low for recovery. Contributing to the accident was the pilot's decision to operate the airplane with an inoperative airspeed indicator. 1
The pilot’s failure to maintain pitch and yaw control during the landing roll in crosswind conditions.\r\n\r 1
Fuel starvation due to the pilot’s failure to turn on the fuel transfer pump switches during takeoff, which led to a total loss of engine power. Contributing to the accident was the pilot's improper decision to activate the annunciator panel’s dimming function during dusk, which prevented him from seeing the illuminated fuel transfer pump caution light indicating that the pumps were off and the illuminated caution lights for low fuel in the supply tanks.\r\n\r\n\r 1
The student’s improper landing flare, which resulted in a hard landing. 1
Controlled descent into terrain due to engine issues, the reason for which could not be determined because examination of the engine revealed no evidence of malfunctions or failures that would have precluded normal operation. 1
Contamination of the fuel system, resulting in a partial loss of engine power and subsequent off-airport landing. 1
The pilot’s failure to see and avoid a tower during an agricultural application flight. \r\n\r 1
The pilot's loss of control due to spatial disorientation while maneuvering in night conditions over an area devoid of ground reference lights. 1
The pilot's improper landing flare, which resulted in a porpoised landing. 1
Corrosion of the bulkhead assembly in the left main landing gearbox area, which resulted in the structural failure of the bulkhead and the subsequent landing gear collapse.\r 1
The student pilot’s failure to maintain directional control during a go-around in gusting wind conditions.\r\n\r 1
A partial loss of engine power during low-altitude maneuvering for reasons that could not be determined because postaccident examinations of the engine and airframe revealed no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation.\r\n\r 1
The pilot’s improper decision to depart from an unsuitable off-airport surface which resulted in his subsequent exceedance of the airplane's critical angle of attack, an aerodynamic stall and loss of control.\r 1
The pilot’s inadvertent flight into instrument meteorological conditions and subsequent controlled flight into terrain.\r 1
Fracture of a compressor turbine (CT) blade due to operational overtemperatures and the failure of a maintenance technician to detect an existing crack in the CT blade during the last engine inspection.\r 1
The failure of the right main landing gear strut brace for reasons that could not be determined based on the available evidence.\r 1
The pilot's failure to maintain an appropriate glidepath to landing with sun glare and downdraft conditions, which resulted in the airplane landing in a ravine short of the runway. 1
The pilot's loss of airplane control due to spatial disorientation in instrument meteorological conditions. 1
The flight crew's misidentification of taxiway C as the intended landing runway, which resulted from the crewmembers' lack of awareness of the parallel runway closure due to their ineffective review of notice to airmen (NOTAM) information before the flight and during the approach briefing. Contributing to the incident were (1) the flight crew's failure to tune the instrument landing system frequency for backup lateral guidance, expectation bias, fatigue due to circadian disruption and length of continued wakefulness, and breakdowns in crew resource management and (2) Air Canada's ineffective presentation of approach procedure and NOTAM information. 1
The noncertificated pilot’s failure to maintain clearance from residential buildings and trees in gusting wind conditions.\r\n\r 1
The pilot's incorrect configuration of the landing gear for a water landing in an amphibious airplane, which resulted in a nose-over. 1
The pilot's failure to maintain a proper approach path, which resulted in impact with trees. \r\n\r\n \r\n\r 1
The failure of the No. 4 cylinder exhaust valve head, which resulted in a total loss of engine power due to oil starvation. \r\n \r 1
The pilot's failure to lock the castering tailwheel in accordance with the airplane Owner's Manual and a checklist item and to abort the takeoff after the airplane exceeded its normal takeoff distance and/or reached the limit of the rudder control authority during the takeoff roll, which resulted in a loss of directional control and a subsequent runway excursion and impact with a light.\r 1
The pilot's failure to maintain separation from a stationary airplane during the taxi to the runway. 1
The loss of airplane control while maneuvering at low altitude for reasons that could not be determined. 1
The pilot’s failure to manage fuel quantity in flight, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to follow manufacturer guidance for restoring engine power after emptying a fuel tank.\r 1
The pilot’s improper landing flare in gusting wind conditions, which resulted in a porpoised landing.\r\n\r 1
The pilot's failure to maintain lateral/bank and yaw control during a go-around. 1
A collision with a deer during the landing roll, which resulted in a runway excursion. 1
The pilot's inadvertent activation of the engine's choke control during a downdraft encounter, which resulted in a total loss of engine power. 1
The pilot's failure to maintain adequate airspeed while maneuvering for landing, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent stall/spin. Contributing to the accident was the pilot's distraction due to a failure with the airplane's electrical system, failure to follow emergency procedures and to continue with a known electrical problem. \r\n\r 1
The pilot’s inadvertent toe brake application during the landing roll, which resulted in a runway excursion and a ground loop.\r\n\r 1
The pilot’s failure to maintain clearance from trees during a low-level agricultural aerial application flight. \r 1
The pilot’s loss of situational awareness during the approach over a corn field, which resulted in collision with corn stalks.\r\n\r 1
The pilot's failure to maintain airplane control, his inadequate quartering tailwind correction during takeoff, and his decision to continue the takeoff to the south with insufficient road length remaining. 1
The student pilot’s improper landing flare, which resulted in a bounced landing and subsequent loss of directional control and runway excursion during the aborted landing. Contributing to the improper landing flare was the student’s distraction by a deer running across the runway.\r\n\r 1
The pilot’s and flight instructor’s failure to extend the landing gear.\r\n\r 1
The pilot's failure to maintain directional control during takeoff from a rough, dirt airstrip. 1
The pilot’s inadvertent use of the propeller control, which caused the propeller to feather while in flight with the engine still operating, resulting in a loss of thrust and a subsequent forced landing.\r 1
The pilot's failure to maintain adequate clearance from power lines while conducting an aerial application flight. 1
A partial loss of engine power for reasons that could not be determined based on the available information, and the pilot's exceedance of the airplane's critical angle of attack during an attempted return to the airport, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was the pilot's decision to return to the airport following a partial loss of engine power. 1
The student pilot's mismanagement of the main rotor rpm, which resulted in low rotor rpm, a high descent rate, and a subsequent hard landing. 1
An in-flight collision with a bird during takeoff, which resulted in a partial loss of engine power and subsequent collision with trees and terrain. 1
The pilot's failure to maintain helicopter control during the approach to landing. 1
The airplane’s collision with a deer during the landing roll.\r\n\r 1
The pilot's failure to attain the proper touchdown point, which resulted in a runway overrun. 1
An encounter with convective turbulence.\r 1
The flight instructor's failure to ensure that the airplane's fuel system was free of water contamination before departing, which resulted in a total loss of engine power and subsequent forced landing.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion.\r 1
The failure of an exhaust valve spring retainer due to metal fatigue for reasons that could not be determined, which resulted in a total loss of engine power.\r 1
The passenger's failure to let go of the balloon's gondola when the balloon began to ascend. Contributing to the accident was the pilot's failure to maintain control of the balloon after landing, which resulted in an inadvertent takeoff.\r 1
Failure of the flywheel drive assembly, which resulted in a loss of engine power and subsequent forced landing to uneven terrain.\r 1
The pilot’s failure to maintain clearance from trees while landing in a dusty, unimproved landing zone.\r\n\r 1
A total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the airplane revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.\r\n\r 1
The pilot's failure to apply the proper procedures to recover from a loss of tail rotor effectiveness, which resulted in a loss of control during an aerial application turn. 1
Maintenance personnel’s installation of an improper vacuum pump gasket, which resulted in oil starvation to the engine and a subsequent total loss of engine power.\r 1
The pilot's failure to maintain an appropriate glidepath during the approach to the runway over glassy water and in glaring sun conditions. 1
The loss of engine power due to fuel exhaustion, which resulted from the pilot's inadequate preflight fuel planning. 1
A total loss of engine power due to fuel starvation for undetermined reasons.\r 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine and airframe did not reveal any anomalies that would have precluded normal operation. 1
Fuel starvation and a subsequent loss of engine power for reasons that could not be determined because a postaccident examination and a test run of the engine did not reveal any anomalies. Contributing to the accident was the pilot’s failure to maintain airspeed after the loss of engine power, which resulted in an aerodynamic stall and a hard landing.\r 1
The student pilot’s improper landing flare, which resulted in a porpoised landing.\r\n\r 1
The pilot’s failure to maintain airplane control during landing in gusting wind conditions. 1
A partial loss of engine power for reasons that could not be determined due to a lack of available evidence. 1
The flight instructor's delayed remedial action to maintain helicopter altitude during hover flight instruction, which resulted in the helicopter skid contacting a crack in the runway and a dynamic rollover.\r\n\r\n \r\n\r 1
Failure of the left landing gear door actuator, which resulted in a loss of all hydraulic pressure and subsequent gear collapse on landing.\r 1
The pilot’s failure to maintain directional control of the tailwheel airplane during the landing roll.\r\n\r 1
The pilot's failure to maintain clearance from trees during low-altitude flight, which resulted in an in-flight collision and impact with terrain. 1
The loss of engine power for reasons that could not be determined postaccident engine test-runs revealed no preimpact mechanical malfunctions or failures that would have precluded normal operation.\r 1
The loss of engine power and the subsequent pilot's loss of control for reasons that could not be determined because post-accident engine examination revealed no anomalies. 1
The flight instructor's decision to conduct a low-altitude flight into a box canyon in high density altitude conditions and his failure to maintain airspeed while maneuvering to escape the canyon, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall. 1
The pilot's failure to maintain adequate airspeed after a loss of engine power, which resulted in an aerodynamic stall at a low altitude from which the pilot was unable to recover. The loss of engine power resulted from the pilot's improper selection for the electric fuel pump setting during climbout, which caused an excessively high fuel flow to the engine. Contributing to the accident was the pilot's failure to follow the airplane manufacturer's emergency procedures for a low-altitude loss of engine power. 1
The noninstrument-rated pilot's continued visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation and collision with terrain. Contributing to the accident was the pilot's self-induced pressure to complete the flight in order to attend the aerobatic competition. 1
The pilot’s failure to maintain directional control while landing on a narrow, unimproved airstrip in gusting wind conditions.\r\n\r 1
The pilot’s failure to retract the landing gear before landing on water.\r 1
The nearly complete blockage of the right fuel tank strainer with organic material, which resulted in fuel starvation and the subsequent total loss of engine power. Contributing to the fuel starvation was the pilot receiving instruction’s and the flight instructor’s failure to identify that the fuel was burning unevenly during the flight.\r 1
An inflight engine fire for reasons that could not be determined based on the available information, which melted the air filter element and obstructed the engine's air intakes, resulting in a total loss of engine power.\r 1
A loss of control in flight for reasons that could not be determined based on the available information, which resulted in an in-flight breakup. 1
The pilot’s failure to maintain directional control during landing in a gusting crosswind conditions.\r 1
A total loss of engine power due to fuel starvation for reasons that could not be determined based on the available evidence. Also causal was the pilot's decision to return to the runway following the loss of engine power, and his failure to maintain airspeed during the turn, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall/spin. 1
The student pilot’s improper landing flare, which resulted in a bounced landing and a propeller strike.\r\n\r 1
A total loss of engine power during initial climb for reasons that could not be determined due to impact and fire damage. 1
The pilot’s failure to maintain directional control during crosswind conditions.\r 1
The pilot’s failure to maintain clearance from a wire during an agricultural application flight.\r 1
The noninstrument-rated pilot's improper decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain. 1
The pilot’s failure to maintain an adequate approach path, which resulted in the left wing impacting a street sign.\r\n\r 1
A loss of engine power for reasons that could not be determined based on the available information which resulted in a landing short of the runway.\r 1
The pilot’s improper torque of screws that attached the flywheel mounting flange to the crankshaft during engine assembly, which resulted in heavy vibrations and the subsequent in-flight loss of the propeller.\r 1
The failure of the landing gear to fully extend due to insufficient hydraulic fluid in the hydraulic system as a result of inadequate maintenance by the airplane owner. \r 1
The failure the control alternator gearshaft, which disconnected the accessory gearbox from the rest of the engine and resulted in an uncommanded in-flight shutdown of the left engine and subsequent flight diversion. The control alternator gearshaft failed because of high cycle fatigue intergranular corrosion cracking. Contributing to the failure of the control alternator gearshaft were additional manufacturing processing steps to address part non-conformances that reduced its high cycle fatigue capability and potential change in vibratory environment since the last shop visit. 1
The pilot's exceedance of the airplane's critical angle of attack while intentionally maneuvering in a steep bank at low altitude, which resulted in an accelerated aerodynamic stall and subsequent loss of control. 1
The student pilot's decision to attempt to close the cockpit window during takeoff and his subsequent failure to maintain directional control. 1
The pilot’s inadequate preflight planning that did not account for high-density altitude conditions and his subsequent attempted go-around in conditions that prevented the airplane from attaining a positive climb rate and resulted in its subsequent descent and impact with rising terrain. \r\n\r 1
Failure of the propeller speed reduction gearbox input drive gear during the airplane’s initial climb for reasons that could not be determined due to extensive damage.\r 1
The pilot’s improper landing flare, which resulted in a hard landing and a subsequent loss of directional control.\r\n\r 1
The pilot's loss of helicopter control during landing to a dolly. 1
The loss of pitch control due to the overload failure of the control rod.\r 1
The pilot’s abrupt maneuver to avoid a moose cow and calf during taxi, which resulted in an impact with a tree.\r\n\r 1
The pilot’s abrupt maneuver to avoid hay bales during the takeoff roll, which resulted in a loss of directional control.\r\n\r 1
The pilot’s improper decision to perform a low altitude fly-by over ground equipment, which resulted in the airplane striking the equipment.\r\n\r 1
The student pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during an attempted go-around, which resulted in an aerodynamic stall. \r\n\r 1
The pilot's improper in-flight fuel management, which resulted in a total loss of engine power due to fuel starvation. \r 1
The pilot's decision to land on unsuitable terrain, which resulted in the nosewheel breaking and a subsequent noseover.\r\n\r\n \r\n\r 1
The pilot’s difficulty controlling the airplane due to his incorrect reinstallation of the wings, which led to a bounced precautionary landing. Contributing to the accident was the failure of the pilot and the mechanic to verify the wings’ angle of incidence.\r 1
The pilot's failure to maintain a safe distance between the airplane and a person on the ground, which resulted in serious injuries to the person. 1
The pilot's in-flight fuel mismanagement, which resulted in fuel starvation and a total loss of engine power. 1
The pilot’s decision to continue to attempt to take off despite the airplane’s inability to attain a positive climb rate, which resulted in little runway remaining, and his subsequent decision to turn off the runway, which resulted in a collision with a barn.\r\n\r 1
The balloon’s encounter with unexpected wind gusts during inflation, which resulted in the balloon becoming prematurely airborne and subsequently the pilot being ejected from the basket and one passenger receiving serious injuries while attempting to egress from the pilotless balloon. 1
The failure of the engine's front bearing seal due to maintenance personnel’s installation of an improperly sized crankshaft seal, which resulted in oil starvation and a forced landing. 1
The pilot's inability to control the helicopter's descent after encountering a sudden wind shift to a tailwind while performing a near maximum gross weight landing at a high density altitude.\r\n\r\n \r\n\r 1
A total loss of engine power due to the engine’s unresolved high operating temperatures, which resulted in failure of the distributor rotor and drive shaft, and the pilot’s failure to maintain airspeed during the subsequent forced landing, which resulted in an aerodynamic stall and loss of control. \r 1
The pilot’s failure to maintain a proper landing flare in variable wind conditions, which resulted in the airplane landing on the left edge of the runway and impacting trees.\r\n\r 1
The failure of the right main landing gear trunnion bracket due to an undetermined overstress event.\r 1
The pilot's continued visual flight rules flight into instrument meteorological conditions and mountain obscuration that resulted in controlled flight into trees and terrain. 1
The pilot's incapacitation due to scarring from previous heart attacks and severe hypertrophy of the left ventricular wall which resulted in arrhythmia and a loss of control while maneuvering at low altitude. 1
The pilot's failure to maintain adequate airspeed, properly correct for left yaw, and his exceedance of the airplane's critical angle of attack during initial climb, which resulted in an aerodynamic stall and subsequent uncontrolled descent into water. 1
The pilot’s aggressive and early forward stick application during the landing roll, which resulted in his failure to maintain pitch control and a subsequent nose-over.\r\n\r 1
The pilot's failure to attain a proper touchdown point during landing, which resulted in a runway excursion. Contributing to the accident was the pilot’s impaired vision due to his broken eyeglasses. 1
The pilot's failure to visually check the fuel quantity during the preflight inspection and ensure that sufficient fuel was onboard for the flight, which resulted in a total loss of engine power due to fuel exhaustion. 1
The pilot's failure to maintain a proper approach path, which resulted in the airplane’s hard landing and nose over after the water landing.\r 1
A failure of the wiring between the engine control unit and the fuel injector, which resulted in a total loss of engine power.\r 1
The pilot's improper approach to landing and his failure to perform a go-around, which resulted in a runway overrun. 1
The flight instructor's delayed remedial action, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall and loss of control. Contributing to the accident was the student pilot's failure to maintain runway alignment on approach. 1
The pilot's decision to turn toward the inoperative engine after conducting a low-level pass, which resulted in an aerodynamic stall at too low an altitude to recover. Contributing to the accident was the pilot's decision to perform the flight and the engine shut down demonstration with an inadequate airplane charging system and a known weak battery. 1
The pilot's failure to maintain adequate airspeed while maneuvering in high winds, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's improper decision to load the airplane beyond its allowable gross weight and center of gravity limits. 1
The pilot’s failure to maintain clearance from terrain.\r\n\r 1
The partial separation of one counterweight and the subsequent seizure of the engine due to mechanical interference. Contributing to the partial separation of the counterweight was the overstress fracture of a retaining ring and the fatigue fracture of the counterweight washer for reasons that could not be determined based on the available evidence. \r 1
The pilot's improper glidepath in variable wind conditions, which resulted in the airplane impacting terrain short of the runway threshold. 1
The pilot's failure to maintain a proper approach speed, which resulted in in a hard landing and a runway excursion. Contributing to the accident was the pilot's decision to fly the airplane without an instructor onboard. 1
The pilot’s selection of unsuitable terrain for taxiing, which resulted in a nose-over.\r\n\r 1
Foam contamination in the fuel injector nozzles from deteriorated foam baffles and water in the fuel flow divider, the combination of which resulted in the loss of engine power.\r 1
The pilot’s selection of a threaded metal rod of insufficient strength to connect the fuel tank selector handle to the fuel valve, which resulted in his inability to switch fuel tanks and a subsequent total loss of engine power due to fuel starvation. 1
A total loss of engine power for reasons that could not be determined based on the available information, and the pilot's subsequent failure to maintain adequate airspeed, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall/spin. 1
The student pilot's incorrect landing flare, which resulted in the airplane porpoising upon touchdown. 1
The pilot's failure to maintain directional during the landing. 1
The pilot’s failure to maintain directional control during the landing roll due to the high placement of his feet on the rudder pedals, which led to the inadvertent application of the brakes. \r\n\r 1
The airplane builder's failure to install safety wires on the brake disc attachment bolts, and the mechanic’s failure to identify the omission during the condition inspection. The subsequent brake disc separation resulted in a loss of directional control during the landing roll. 1
A partial loss of engine power due to a compromised induction system. 1
The pilot's loss of control due to impairment from carbon monoxide poisoning. Contributing to the accident was the corrosion of the heat exchanger and the failure of maintenance personnel to adequately inspect and repair or replace the exchanger during the most recent annual inspection. 1
The pilot’s unstabilized approach and failure to go around in rainy, gusting crosswind conditions, which resulted in a runway overrun. Contributing to the accident was the pilot’s self-induced pressure to land due to the deteriorating weather conditions.\r\n\r 1
The pilot's abrupt and substantial pullup maneuver while flying the airplane above the maneuvering speed, which resulted in an in-flight breakup. The reason for the pilot's maneuver could not be determined based on the available evidence. 1
The loss of oil pressure and subsequent engine overspeed/surge during a zero g-force maneuver, which resulted in the separation of a crankshaft counterweight and loss of engine power.\r\n\r 1
The flight instructor's decision to continue the takeoff in gusting tailwind and high density altitude conditions, which significantly reduced airplane performance, and his subsequent exceedance of the airplane's critical angle of attack during the initial climb, which resulted in an aerodynamic stall at low altitude. 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the wing’s angle of attack while on short final, which resulted in an aerodynamic stall.\r\n\r 1
The pilot's failure to maintain lateral/bank control during the takeoff climb in gusting crosswind conditions. 1
The pilot's incorrect landing flare, which resulted in a hard, bounced landing. 1
A partial loss of engine power during the initial climb due to carburetor icing.\r 1
A Bombardier CRJ700 No. 1 engine failure caused by buckling of the combustion outer liner due to fatigue cracks. The liner buckling resulted in airflow disruption and reduced engine performance. The engine fuel control unit attempted to compensate for the decrease in engine performance by increasing the fuel flow rate. The combustion liner damage and increased fuel flow led to incomplete combustion of the fuel injected into the combustion chamber. Unconsumed fuel then ignited downstream of the combustion chamber (delayed ignition) and resulted in high pressure turbine thermal damage, and the eventual separation of a high pressure turbine 2nd stage nozzle vane segment. The separated vane segment subsequently caused low pressure turbine case burn through and catastrophic impact damage to the high and low pressure turbine stages. 1
The pilot's decision to attempt flight with low-level fog in the area, which resulted in an encounter with instrument meteorological conditions and impact with terrain. 1
The pilot's failure to reset the cyclic trim before takeoff, which resulted in ground resonance. 1
The pilot’s failure to maintain clearance from transmission wires while maneuvering at a low altitude during an agricultural application flight.\r\n\r 1
The pilot’s failure to maintain helicopter control during an agricultural flight in gusting wind conditions. \r\n\r 1
The pilot's decision to fly the airplane under transmission lines while maneuvering at low altitude in high-density altitude conditions, which resulted in subsequent collision with terrain. 1
The pilot’s exceedance of the glider’s critical angle of attack while maneuvering over rising mountainous terrain, which resulted in an aerodynamic stall. \r 1
The right main landing gear collapse for undetermined reasons. \r 1
The pilot’s improper decision to take off with a known fuel leak, which resulted in a loss of engine power due to fuel exhaustion.\r 1
The failure of the throttle control cable due to fatigue and maintenance personnel’s failure to replace the cable at the last engine overhaul, which resulted in the pilots’ inability to control engine power and led to a precautionary landing during which the airplane impacted bushes.\r 1
The first officer's improper landing flare, which resulted in a hard, bounced landing, and the flight crew’s improper bounced landing recovery procedures.\r 1
The unporting of fuel due to the helicopter's nose-up attitude during long line operations, which resulted in fuel starvation and a total loss of engine power. 1
The pilot’s improper landing flare and subsequent failure to maintain directional control during the landing.\r\n\r 1
The partial loss of engine power due to water contamination in the fuel system. 1
The pilot's inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot's failure to use the emergency checklist to restart the engine. 1
A partial loss of engine power during initial climb for reasons that could not be determined because extensive fire damage precluded thorough examination of the engine and its associated systems. 1
The pilot’s failure to maintain clearance from power lines during low-level maneuvering.\r 1
The pilot’s failure to attain a proper glidepath on approach for landing, which resulted in an impact with a guard rail and post. Contributing to the accident was the pilot’s failure to ensure that sufficient fuel was onboard for nonlevel flight, which resulted in fuel starvation.\r\n\r 1
The pilot's failure to maintain aircraft control during takeoff, which resulted in a collision with power lines. Contributing to the accident was the pilot's lack of experience in powered parachutes. 1
An unporting of fuel in the right wing while maneuvering in the airport traffic pattern, which resulted in a partial loss of engine power due to fuel starvation. 1
An in-flight collision with a bird during the approach.\r\n\r 1
The pilot’s inadequate supervision of the refueling process, which resulted in a loss of engine power due to water contamination in the helicopter’s fuel system from the fuel drum and subsequent impact with terrain. \r\n\r 1
The pilot’s improper landing flare on a turf runway, which necessitated a go-around during which he failed to establish a climb.\r\n\r 1
The pilot’s inability to avoid a collision with an unauthorized vehicle on the runway during the landing roll and the truck driver’s decision to cross the runway in front of the airplane. 1
The pilot’s failure to maintain a stabilized approach, which resulted in a bounced landing and subsequent go-around with insufficient distance to clear trees during the climb. \r 1
The pilot’s failure to secure a loose item inside the cockpit that interfered with antitorque pedal control and led to a loss of helicopter control due to a loss of tail rotor effectiveness. \r\n\r 1
The pilot’s loss of directional control upon landing. 1
A loss of engine power due to the failure of the manufacturer to reinstall the oil filter after it was removed for inspection, which led to coke pollution that obstructed the oil jet and resulted in the subsequent oil starvation of the axial compressor rear bearing oil and its subsequent failure.\r\n\r 1
The inflight overstress separation of the vertical stabilizer and rudder during flight which resulted in the pilot's inability to maintain airplane control. Contributing to the accident was an inflight collision with a bird.\r\n\r\n \r\n\r\n \r\n\r 1
The pilot's improper positioning of the fuel selector between the left and right fuel tank positions, which resulted in a partial loss of engine power due to fuel starvation and a subsequent forced landing into trees. 1
The student pilot's failure to maintain an adequate airspeed for landing and his improper landing flare and recovery from a bounced landing. 1
The pilot receiving instruction’s failure to maintain directional control during the landing roll and the flight instructor’s delayed remedial action, which resulted in a ground loop. \r 1
The pilot’s failure to abort the takeoff after recognizing a partial loss of engine power during the takeoff roll and his subsequent inability to maintain adequate airspeed during a turn to avoid power lines, which resulted in an aerodynamic stall. The reasons for the loss of engine power could not be determined because postaccident examination of the engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.\r 1
The pilot's decision to take off with a gusting tailwind, which resulted in a loss of pitch control during the initial climb and a subsequent hard landing and loss of directional control. 1
The pilot's failure to extend the landing gear with sufficient time to allow the landing gear to fully extend and the flight instructor's failure to visually check to see if the right main landing gear were extended. 1
The pilot’s failure to maintain directional control during the takeoff roll, which resulted in the airplane contacting tall grass.\r\n\r 1
The student pilot's incorrect control application during landing after a simulated engine failure, which resulted in a hard, bounced landing, and the flight instructor's delayed action to perform a go-around in gusting wind conditions. 1
The pilot's failure to properly configure the mixture control for landing due to disorientation because he had the airport diagram upside down, which resulted in a total loss of engine power. 1
The pilot's failure to visually check the fuel level prior to takeoff and subsequent mismanagement of the available fuel supply during numerous glider tow flights. 1
The flight instructor's failure to perform a go-around during final approach, which resulted in an aerodynamic stall and a hard landing. Contributing to the accident was the flight instructor's failure to brief the student pilot on the positive transfer of aircraft control during preflight. 1
A loss of preload to the crankshaft gear attachment bolt due to improper installation, which resulted in the fatigue failure of the crankshaft gear alignment dowel and led to the rotation of the crankshaft gear and a subsequent total loss of engine power. 1
The student pilot’s rudder overcorrection during the landing roll, which resulted in a loss of directional control.\r\n\r 1
The pilot’s failure to maintain directional control during landing in gusting wind conditions.\r 1
The pilot's improper fuel management, which resulted in fuel starvation and the subsequent total loss of engine power.\r 1
The loss of engine power due to fuel exhaustion, which resulted in a forced landing on unsuitable terrain.\r 1
The pilot's exceedance of the airplane’s critical angle of attack, which resulted in a power-on stall and subsequent loss of airplane control.\r\n\r\n\r 1
The pilot's failure to maintain clearance from terrain after takeoff during dark night conditions. 1
The student pilot's failure to maintain crosswind correction during a go-around in gusting wind conditions.\r\n\r\n \r\n\r 1
The glider pilot’s failure to maintain proper pitch during an aerotow takeoff. \r 1
The student pilot’s failure to maintain an adequate glidepath and the flight instructor’s delayed remedial action, which resulted in the glider landing short of the runway.\r\n\r 1
The pilot’s failure to maintain pitch control during the landing roll in gusting wind conditions, which resulted in a nose-over. \r\n\r 1
The pilot's failure to maintain helicopter control for reasons that could not be determined because postaccident examination of the helicopter did not reveal any preimpact mechanical malfunctions or anomalies that would have precluded normal operation. 1
The overpressurization failure of the airship envelope as a result of the airship's encounter with gusty wind conditions and thermal activity. Contributing to the accident was the jammed Plexiglass venting panel. 1
The pilot's failure to maintain lateral/bank control during the initial climb in turbulent conditions. 1
The pilot's failure to stop the airplane within the available runway after conducting the approach and landing with a tailwind. 1
The flight instructor's inadequate preflight planning, which resulted in a takeoff over maximum gross weight from a turf runway in high
density altitude conditions and the airplane’s inability to attain a climb rate and subsequent collision with trees. 1
The in-flight failure of the left wing due to the owner's use of improper hardware and his improper assembly of the airplane, which reduced the strength of the left wing and resulted in its subsequent failure following a sharp pullup maneuver. 1
The separation of the nose wheel axle bolt and the nose wheel during the landing roll for reasons that could not be determined because the bolt was not recovered. 1
The pilot's improper starting procedure before hand propping the engine, and his subsequent attempt to stop the moving airplane, which resulted in him being struck by the propeller.\r\n\r 1
The pilot's failure to properly secure the external load, which resulted in the load shifting during flight, interference with the water rudder cable, and a subsequent loss of control\r 1
The pilot’s failure to maintain the airplane’s pitch control during rotation and his subsequent loss of directional control.\r 1
The pilot’s failure to maintain directional control during the landing.\r\n\r 1
Fuel starvation due to the deterioration of a fuel hose. 1
The pilot's misjudgment of the takeoff distance needed to depart the lake, and his subsequent failure to maintain clearance from the water during a turn to avoid terrain, which resulted in impact with water.\r\n\r 1
The loss of engine power due to a lack of ignition resulting from a broken alternator wire.\r 1
The airplane’s encounter with boat wake and multiple swells during a water takeoff.\r\n\r 1
A partial loss of engine power due to the formation of carburetor ice during descent for landing. Contributing to the accident was the pilot’s failure to apply carburetor heat.\r 1
A yaw excursion and uncontrolled descent due to loss of tail rotor effectiveness during aerial firefighting operations resulting in an impact with trees. A contributing factor was the pilot’s failure to maintain sufficient airspeed, coupled with a quartering tailwind during aerial firefighting operations. An additional factor was the operator’s lack of guidance to the hazards associated with aerial firefighting operations near and around smoke columns. \r 1
The student pilot's overpriming of the engine and the flight instructor's delayed remedial action, which resulted in an engine fire. 1
A hard landing at an unknown time.\r 1
Maintenance personnel's inadequate routine maintenance on the helicopter engine, which led to low cylinder compression, improper magneto timing, and camshaft lobe wear, which subsequently resulted in degraded engine performance. 1
The pilot’s inadequate in-flight fuel planning, which resulted in a loss of engine power due to fuel exhaustion.\r\n\r 1
The noncertificated pilot's failure to maintain control of the weight-shift-control aircraft during takeoff. 1
A fatigue fracture of the left main landing gear axle.\r 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have that would have precluded normal operation. 1
The pilot's unstabilized approach, which resulted in landing long and fast, and his subsequent failure to maintain clearance from trees during a go-around. 1
The total loss of engine power due to oil starvation to the No. 1 connecting rod, which resulted from the improper torque of the No. 1 cylinder hold-down bolts and through-studs at the time of the cylinder's installation, which resulted in the failure of the connecting rod due to oil starvation. Contributing to the accident was the omission, from the air traffic control display map data, of a closer alternate airport for the emergency landing.\r 1
The pilot's improper decision to not stop and refuel the airplane as planned and his improper in-flight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.\r 1
The pilot's failure to use carburetor heat while operating in weather conditions that were conducive to carburetor ice formation, which resulted in a total loss of engine power due to carburetor ice accumulation. 1
The failure of the propeller due to fatigue as a result of improper installation by unknown maintenance personnel at some point during the life of the propeller. 1
The mechanic’s incorrect installation of the right main landing gear (MLG) aft trunnion pivot pin, which resulted in the pin separating from the trunnion, the trunnion puncturing the right wing, and the right MLG collapsing.\r 1
The pilot's incorrect positioning of the fuel tank selector valve during a tank switch, which resulted in fuel starvation and a loss of engine power. Contributing to the accident was the worn condition of the fuel selector valve handle position detents and markings.\r 1
The student pilot’s failure to maintain yaw control and the flight instructor’s delayed remedial action.\r\n\r 1
The pilot’s loss of directional control during the takeoff roll, which resulted in impact with visual approach slope indicator lights.\r\n\r 1
The flight instructor's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during a go-around in gusting crosswind conditions, which resulted in an aerodynamic stall. 1
The pilot's failure to maintain directional control during an off-airport precautionary landing on a dirt road with an uphill gradient. 1
Impact with multiple birds while retracting the landing gear, which resulted in the subsequent failure of the right inboard main landing gear door actuator hose and prevented the pilot from being able to extend the landing gear. \r\n\r 1
The student pilot’s inadequate in-flight fuel planning, which resulted in fuel exhaustion, the subsequent total loss of engine power, and a forced off-airport landing. \r\n\r 1
The pilot's failure to latch the canopy before takeoff, and his failure to maintain pitch control following the in-flight opening of the canopy during the initial climb resulting in a subsequent impact with terrain and ground fire. 1
The pilot's inadequate compensation for wind conditions during the approach to landing, which resulted in a loss of helicopter control due to a loss of tail rotor effectiveness. 1
The pilot's misjudgment of the airplane’s speed and the distance remaining during landing and his improper decision to not abort the landing. 1
A collapse of the right main landing gear due to a bent pushrod, which precluded the gear from fully extending. The reason for the bent pushrod could not be determined based on the available information.\r 1
The student pilot’s improper landing flare and subsequent failure to maintain directional control during the landing roll.\r\n\r 1
The pilot's inadequate flight planning, preparation, and navigation, which resulted in the airplane entering a canyon that the pilot was unable to exit by climbing the airplane. Also causal were his in-flight decision-making and his execution of the course reversal turn, which resulted in an aerodynamic stall and terrain impact. 1
The pilot’s improper landing flare, which resulted in a bounced landing, and his subsequent loss of airplane control during an attempted aborted landing. \r\n\r 1
The pilot's incorrect pitch control during the initial climb, which resulted in his decision to abort the takeoff and a subsequent hard landing. 1
The pilot's inadequate inflight decision making, which resulted in a total loss of engine power due to fuel exhaustion. 1
The fatigue crack of an engine cylinder, which resulted in a partial loss of engine power. 1
A loss of engine power for reasons that could not be determined because the airplane was not available for examination. 1
The student pilot’s improper bank control during takeoff, which resulted in a dynamic rollover.\r\n\r 1
A leak in the right brake slave cylinder, which led to no fluid in the reservoir and subsequent asymmetric braking.\r 1
A total loss of engine power for reasons that could not be determined because postaccident examination and a test run of the engine did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation. 1
The pilot's inadequate preflight inspection, which failed to detect a crack in the propeller blade, which led to the separation of a section of a propeller blade due to fatigue. 1
The pilot's improper landing flare, which resulted in a hard landing and the overstress failure of the right main landing gear.\r 1
The pilot's failure to maintain adequate airspeed while maneuvering in the airport traffic pattern for landing, which resulted in an exceedance of the airplane's critical angle of attack, a subsequent aerodynamic stall at an altitude too low to recover. 1
The improper maintenance of the landing gear system and subsequent failure of the hydraulic landing gear down return line, which resulted in a loss of hydraulic fluid and the pilot’s inability to extend and lock the main landing gear. 1
The pilot's failure to maintain directional control during takeoff with a quartering tailwind. Contributing to the accident was the pilot's lack of experience in the accident airplane make and model. 1
The pilot’s use of excessive brake pressure during the landing roll, which resulted in a nose-over. \r\n\r 1
The pilot’s inadequate compensation for a tailwind, which resulted in a runway overrun.\r\n\r 1
The pilot’s improper airspeed and pitch control during landing in variable, gusting wind conditions, which resulted in an aerodynamic stall and hard landing.\r\n\r 1
A total loss of engine power for reasons that could not be determined because examination of the airplane and engine did not reveal evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation and because the amount of fuel onboard the airplane could not be verified. 1
The student pilot's inadequate prefight planning and en route fuel management, which resulted in fuel exhaustion and a total loss of engine power. 1
The pilot's exhaustion of the fuel supply in the selected tank. 1
The pilot’s failure to maintain helicopter control during landing due to a loss of tail rotor effectiveness.\r\n\r 1
The pilot’s failure to maintain control of the airplane during the landing roll, which resulted in a runway excursion. 1
The noninstrument-rated pilot's decision to initiate a visual flight rules flight into dark night, marginal visual flight rules to instrument flight rules conditions, which resulted in a loss of control due to spatial disorientation. 1
The pilot's delayed decision to land the airplane with insufficient runway remaining after realizing the airplane wasn't climbing.\r\n\r\n \r\n\r 1
The pilot's failure to maintain directional control on takeoff. 1
A crack in the No. 4 cylinder head, which resulted in engine roughness, a fuel leak, a loss of engine power, and the subsequent in-flight fire.\r 1
The pilot’s improper preflight fuel planning, which resulted in a loss of engine power due to fuel exhaustion.\r\n\r 1
A loss of control for reasons that could not be determined because of the extensive thermal damage from the postcrash fire. 1
An internal failure of the turbo-compressor, which resulted in oil leaking into the turbo-compressor’s exhaust. \r\n\r 1
The pilot’s loss of airplane control after flying through another airplane's jet wash during an air defense exercise.\r 1
An encounter with convective turbulence while maneuvering to avoid conflicting traffic.\r 1
The pilot's failure to maintain control following a rejected takeoff for a perceived loss of engine power. Contributing to the accident was the pilot's lack of training and experience in the airplane. 1
The ground crew’s incorrect hook up of the banner, which resulted in a nose-over.\r 1
Loss of directional control due to a restriction of rudder movement. \r 1
The student pilot’s failure to maintain airplane control while landing in crosswind conditions and the flight instructor’s delayed remedial action.\r\n\r 1
The pilot's failure to follow the pre-takeoff checklist and the failure of the left main landing gear brake due to a damaged brake master cylinder piston rod, which resulted in a stuck left brake and subsequent loss of control during the landing roll. 1
The pilot’s failure to maintain bank control during an attempted go-around.\r\n\r 1
The student pilot’s improper landing flare, which resulted in a hard, bounced landing.\r\n\r 1
The flight instructor and commercial pilot's inadequate preflight inspection, which resulted in water contamination of the fuel supply, and a total loss of engine power. 1
The pilot's inadequate preflight planning and improper takeoff technique, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall. 1
The improperly seated fuel cap, which resulted in an in-flight fuel leak and subsequent total loss of engine power due to fuel starvation.\r 1
The flight instructor’s failure to maintain a proper descent rate during a simulated engine failure, which resulted in a bounced landing. \r\n\r 1
A collision with a deer on the runway during the takeoff roll.\r\n\r 1
the B737 flight crew's misjudgment of the clearance between their wingtip and the B767 horizontal stabilizer. 1
The pilot's decision to operate an airplane with unreliable fuel gauges and the worn fuel cap seal that allowed fuel to siphon from the left wing fuel tank, which ultimately resulted in a total loss of engine power due to fuel exhaustion. 1
The separation of the pushrod from the elevator trim tab actuator, which rendered controlled flight impossible. Contributing to the separation of the pushrod was the failure of maintenance personnel to properly secure it to the elevator trim tab actuator. 1
The total loss of engine power due to a fatigue failure of the engine mixture control cable.\r\n\r 1
The bus driver's failure to maintain clearance from the standing airplane during dark night conditions. Contributing to the accident was the airport's lack of an escort for the bus. 1
the tug operator's initiation of a right turn onto the perpendicular terminal road in proximity to the airplane. 1
The pilot’s improper landing flare in strong gusting wind conditions, which resulted in a bounced landing, and his loss of directional control during an attempted go-around, which resulted in a runway excursion and impact with objects.\r 1
The pilot's delay in applying carburetor heat, which resulted in a total loss of engine power due to carburetor icing. 1
The pilot’s overapplication of brakes, which resulted in a nose-over.\r\n\r 1
The pilot’s failure to maintain pitch control of the airplane during landing, which resulted in a bounced landing. \r\n\r\n\r 1
The catastrophic failure of the compressor turbine blades, which resulted in a total loss of engine power. Contributing to the accident was the installation of undocumented, time-limited engine components of indeterminate age.\r 1
A loose oil line that allowed oil to drip on the exhaust system, which resulted in smoke during cruise flight and a subsequent precautionary landing. 1
Collision with a submerged object during a water landing.\r 1
The pilot’s improper landing flare, which resulted in a bounced landing and subsequent nose gear separation. \r 1
A total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation.\r 1
The non-instrument-rated pilot's inadequate preflight weather planning, his decision to depart into forecast instrument meteorological conditions along the route of flight, and his continued visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of airplane control. 1
The pilot's failure to maintain clearance from a light pole while taxiing. 1
The pilot's distraction by a cell phone during a low-altitude flight, which resulted in controlled flight into terrain. 1
A total loss of engine power due to fuel starvation as the result of foreign object debris in the fuel selector valve. Contributing to the accident was the pilot's selection of a low cruising altitude, which reduced the available time to troubleshoot the loss of engine power and afforded fewer forced landing site options, and improper maintenance of the airplane, which allowed a portion of a shop towel into the fuel system. 1
The pilot's failure to maintain roll control while maneuvering, which resulted in a collision with trees and terrain. 1
A total loss of engine power for reasons that could not be determined because saltwater corrosion precluded a complete examination. 1
The pilot's unstabilized approach, which resulted in an aborted go-around, an aerodynamic stall, and a hard landing. 1
The student pilot’s improper landing flare, which resulted in a bounced landing.\r 1
A failure of the drive belt for reasons that could not be determined based on the available information. 1
The airplane’s collision with two elks during landing.\r\n\r 1
The pilot’s inadequate visual lookout, which resulted in an in-flight collision with a wire.\r 1
The pilot's decision to continue an unstabilized approach for landing in tailwind conditions, which resulted in a runway overrun and a nose-over. 1
The airplane's inability to maintain an initial takeoff climb for reasons that could not be determined based on available information. 1
The loss of tail rotor thrust due to a failed tail rotor driveshaft, which resulted in a loss of tail rotor control and a hard landing.\r 1
The pilot’s failure to maintain directional control while landing on an unimproved airstrip in gusting wind conditions.\r\n\r 1
The passenger’s inadvertent slip on the airplane's air stairs during deplaning, which resulted in a broken ankle. 1
The pilot’s overapplication of the brakes, which resulted in the biplane coming to rest inverted.\r\n\r 1
The airplane’s encounter with a microburst during initial climb that resulted in a loss of altitude and subsequent collision with a tree. 1
A partial loss of engine power during initial climb for reasons that could not be determined based on the available information. \r 1
The pilot's failure to maintain directional control during landing and the airplane’s subsequent failure to attain a climb rate during an attempted go-around in high-density altitude conditions. 1
The pilot’s unstabilized approach and failure to go around, which resulted in a runway overrun on a wet, grass runway.\r\n\r 1
***This probable cause was modified on November 27, 2018. Please see the docket for this accident to view the original probable cause.*** \r\n\r\nThe pilot's improper decision to takeoff in an area of rough water and ocean swells, which resulted in a failure of the right float struts. 1
A loss of aileron effectiveness due to the airplane's design configuration, which resulted in the pilot's inability to control the roll axis and led to a hard landing.\r 1
The pilot’s failure to maintain an appropriate glidepath to an off-airport landing site.\r\n\r 1
The pilot’s failure to maintain clearance from a sign while taking off from a road.\r\n\r 1
The pilot's loss of airplane control due to spatial disorientation while flying in instrument meteorological conditions in the vicinity of adverse weather conditions. 1
A total loss of engine power during initial climb for undetermined reasons.\r 1
A No. 1 (left) engine undercowl fire caused by a fuel nozzle installation error during engine overhaul at Delta TechOps. A fuel nozzle b-nut was cross threaded, which allowed fuel to leak on hot engine case surfaces and subsequently ignite. 1
The pilot's failure to maintain lateral/bank control during takeoff in crosswind conditions. 1
The pilot’s improper landing flare in gusting wind conditions, which resulted in a hard, bounced landing.\r\n\r 1
The non-instrument rated private pilot's improper decision to embark on a flight and continue to fly into forecasted instrument meteorological conditions and mountain obscuration while conducting a visual flight rules flight. 1
The pilot's failure to secure the right fuel cap during the preflight inspection, which resulted in fuel exhaustion, a total loss of engine power, and an off-airport hard landing. 1
A failure of the rear bearing in the No. 2 engine, which (1) created multiple and likely unexpected and confusing cockpit indications, resulting in the pilot's improper diagnosis and subsequent erroneous shutdown of the No. 1 engine, and (2) the resulting degraded the performance of the No. 2 engine, until it ultimately lost power. The complete loss of engine power likely occurred at an altitude and/or airspeed that was too low for the pilot to execute a successful emergency autorotative landing.\r 1
The pilot's early entry into and failure to maintain rotor rpm during a forced landing autorotation after performing an engine shutdown in flight, which resulted in an uncontrolled descent. Contributing to the accident was the failure of maintenance personnel to properly rig the throttle control tie-rod assembly, which resulted in an in-flight separation of the assembly and rendered control of engine rpm impossible. 1
The pilot's failure to maintain adequate airspeed which caused the airplane to exceed its critical angle of attack and led to an aerodynamic stall. 1
The pilot’s unstabilized approach while landing with a tailwind and his subsequent failure to go around, which resulted in a hard landing.\r\n\r 1
The fatigue failure of the aileron hinge bracket tubing for reasons that could not be determined based on the available evidence. 1
The student pilot’s failure to maintain directional control while landing in gusting crosswind conditions.\r\n\r 1
The pilot’s failure to maintain clearance from berms during landing in sun glare conditions. 1
The failure of the bell crank pivot bolt which resulted in the left main landing gear collapse. Contributing to the accident was the lack of landing gear inspections in accordance with the airplane manufacturer's maintenance manuals. 1
The pilot's decision to take off in high-density altitude and gusting quartering tailwind conditions, which resulted in a loss of lift and an inability to gain altitude during the initial climb. 1
The pilot's failure to maintain terrain clearance while conducting aerobatic flight maneuvers with insufficient altitude to recover. 1
The pilot’s failure to properly execute the go-around, which resulted in the airplane failing to maintain a climb, which resulted in collision with a tree. \r\n\r 1
The pilot receiving instruction’s failure to maintain directional control during the landing roll and the flight instructor’s delayed remedial action.\r\n\r 1
A partial loss of engine power due to inadequate maintenance, including worn spark plugs and a leaking fuel hose fitting. \r\n\r 1
An improper repair of the right magneto's tachometer and governor signal wire, which failed during cruise flight. Contributing to the accident were the design of the helicopter, which allowed for a single failure to affect both the engine tachometer and governor control system, and the lack of guidance on how to address the simultaneous failure of both. 1
The partial loss of engine power due to the overstress separation of three supercharger drive gear teeth. \r\n\r 1
The pilot’s improper landing flare during an aborted go-around in gusting wind conditions, which resulted in a hard landing.\r\n\r 1
The pilot's decision to take off at night and continue visual flight into instrument meteorological conditions. which resulted in the pilot becoming spatially disoriented and losing control of the airplane. Contributing to the accident were the pilot's degraded decision-making due to his use of a combination of impairing prescription drugs, and the pilot's lack of instrument and night flight experience. 1
The pilot's improper approach for landing, which resulted in the airplane landing long, and his delayed decision to go around with insufficient runway remaining, which resulted in collision with an airport perimeter fence. 1
The student pilot’s incorrect application of rudder during landing and the flight instructor’s delayed response to the student pilot’s action.\r 1
The pilot's failure to properly configure the airplane for takeoff and his decision to takeoff with a tailwind in unfavorable water conditions, which resulted in the airplane entering an aerodynamic stall and the pilot losing control. 1
The pilot’s failure to maintain adequate clearance and visual lookout while taxiing, which resulted in his airplane colliding with the stationary airplane.\r\n\r 1
The flight instructor's low-altitude maneuvering, which exceeded the helicopter's performance capability in the high-density altitude conditions and resulted in a loss of control. 1
The student pilot’s improper landing flare, which resulted in bounced landing and the collapse of the nose landing gear.\r\n\r 1
The pilot's controlled flight into terrain for reasons that could not be determined based on the available evidence. Contributing to the accident was the pilot's decision to fly at low altitude in close proximity to the rising terrain. 1
The pilot's exceedance of the airplane's critical angle of attack during takeoff in high density altitude conditions, which resulted in an aerodynamic stall, loss of control, and subsequent impact with terrain. 1
A loss of directional control during taxi operations for reasons that could not be determined based on the available information, which resulted in the airplane rolling into a ditch. 1
The pilot’s distraction before landing by a helicopter that was transitioning to the airport and his subsequent failure to extend the landing gear before touchdown. \r\n\r 1
The pilot’s improper landing flare in gusting wind conditions.\r\n\r 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack while maneuvering downwind during an agricultural application flight, which resulted in an aerodynamic stall at low altitude. 1
The pilot’s loss of directional control during landing in variable wind conditions.\r\n\r 1
A hard landing and propeller strike for reasons that could not be determined based on the available evidence. 1
The pilot's exceedance of the airplane's critical angle of attack during initial climb, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's decision to operate the airplane above its maximum gross weight, which likely reduced its takeoff performance. 1
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight, which resulted in the pilot landing short of the intended runway.\r\n\r 1
The total loss of engine power, which resulted from fatigue failure of two engine through bolts and the No. 2 cylinder attachment studs due to the lack of sufficient clamping force. \r 1
The pilot’s improper landing flare and failure to maintain yaw control during a go-around in gusting wind conditions.\r\n\r 1
The pilot’s improper landing flare, which resulted in the nose landing gear collapsing and subsequent loss of directional control.\r\n\r 1
The student pilot’s improper landing flare in gusting wind conditions.\r\n\r 1
The pilot's improper decision to operate an airplane without recent flight training and his inadvertent application of left electric rudder trim before flight and a subsequent loss of airplane control. 1
The pilot's failure to maintain directional control during a period of thermal activity, which led to a runway excursion and impact with terrain. 1
The pilot’s failure to visually confirm that the helicopter was disconnected from hoses during refueling operations. Contributing to the accident was the pilot’s and ground crew’s misunderstanding of the hand signals. \r 1
The pilot's loss of airplane control during a departure turn for reasons that could not be determined.\r\n\r 1
The total loss of engine power due to oil starvation as a result of the loose right magneto, which allowed oil to escape and the engine to seize. Contributing to the accident was inadequate maintenance, which failed to identify the loose magneto bolt.\r 1
The pilot’s failure to maintain directional control while landing.\r 1
A failure of the turbocharger that resulted in complete depletion of the engine oil and catastrophic internal failure of the engine. Contributing to the accident was improper and/or incomplete maintenance and inspection of the turbocharger.\r\n \r\n\r\n\r 1
The pilot's failure to maintain lateral/bank control during the landing in variable gusting wind conditions. 1
The pilot’s failure to maintain directional control during the landing roll in tailwind conditions. \r 1
The pilot's decision to continue visual flight into an area of instrument meteorological conditions, which resulted in a loss of visual reference and subsequent controlled flight into terrain. Contributing to the accident was (1) the inadequate preflight weather planning by the pilot and duty officer (2) the operator's inadequate operational control structure, and (3) the inadequate oversight of the operator's operational control structure by the Federal Aviation Administration.\r\n\r 1
The pilot’s improper bank control during landing in gusting wind conditions.\r\n\r 1
The pilot's failure to set the wing flaps to the "takeoff" position, which resulted in a longer-than-normal takeoff run and collision with terrain. \r\n\r 1
The student pilot’s failure to maintain clearance from trees and power lines while landing.\r\n\r 1
The flight instructor’s unstabilized autorotation, which resulted in a hard landing.\r\n\r 1
The pilot’s loss of directional control during landing due to the failure of the right brake seal. \r 1
The pilot’s delayed decision to abort the takeoff and his failure to properly conduct a rejected takeoff, which resulted in a runway overrun. \r\n \r 1
A fatigue failure of the left aileron control rod end during aerobatic flight, which resulted in the pilot's inability to maintain control of the airplane. 1
The pilot’s loss of directional control during the landing roll and subsequent excessive brake application, which resulted in a nose-over.\r\n\r 1
The failure of the nose landing gear’s (NLG) lower bearing, which resulted in the pilot’s inability to maintain directional control during landing, a runway excursion, and the NLG collapsing.\r 1
The pilot’s decision to take off from an unimproved bean field with insufficient length for the airplane to clear adjacent corn stalks.\r\n\r 1
The pilot’s failure to maintain directional control after an aborted takeoff. \r 1
The pilot's improper decision to attempt to take off after two previous failed attempts from choppy water with a high outside temperature and the airplane near its maximum gross weight, which degraded the airplane’s performance and resulted in its inability to maintain adequate airspeed and sustain a climb.\r\n\r 1
The ground crewman’s failure to visually check the runway before crossing it in a vehicle, which resulted in he and the vehicle being struck by the landing airplane.\r\n\r 1
The airplane’s collision with geese during the takeoff roll.\r\n\r 1
Maintenance personnel's incorrect installation of the aileron control cables and subsequent failure to verify proper aileron functionality following the maintenance, which resulted in roll control that was opposite of that commanded by the pilot, and the pilot's inadequate preflight inspection, during which he did not verify that the aileron movement matched the control yoke input. 1
The pilot's failure to maintain helicopter control while maneuvering during takeoff.\r\n\r\n\r 1
The pilot’s improper decision to take off from a lake in gusting wind conditions, which resulted in a loss of airplane control.\r\n\r 1
The pilot's failure to maintain clearance from the lake during a low-level maneuver. 1
The flight's encounter with adverse weather conditions at night, which resulted in the pilot's loss of airplane control upon landing due to standing water and a subsequent runway overrun.\r\n\r 1
The pilot’s failure to maintain rotor rpm while maneuvering at low altitude with low airspeed and a tailwind.\r\n\r 1
The failure of the pilot to ensure that the flaps were set to the proper position for takeoff which resulted in the airplane becoming airborne and unable to climb or accelerate and subsequently impacting terrain. \r 1
A loss of available power to the main rotor due to a fractured exhaust pushrod and housing, which allowed engine oil to coat the V-belts. Contributing to the accident was the pilot's decision to continue the tour and his failure to maintain adequate rotor rpm during the landing, which resulted in a hard landing. 1
The student pilot’s improper landing flare and subsequent failure to relinquish the flight controls, which resulted in a hard landing.\r\n\r 1
The pilot’s transition into an out-of-ground-effect hover in high-density altitude conditions that exceeded the helicopter’s performance capabilities, which resulted in loss of rotor rpm.\r 1
The pilot’s failure to activate the hydraulic system during the approach, and his failure to ensure that the landing gear was down and locked before touchdown. Contributing to the accident was the pilot's decision to operate the airplane with an inoperative landing gear position indicator light. \r 1
A total loss of engine power for reasons that could not be determined because postaccident engine examination and testing did not reveal any mechanical malfunctions or anomalies that would have precluded normal operation. \r 1
The pilot’s improper decision to continue flight in deteriorating weather conditions, which resulted in collision with the ground.\r\n\r 1
A loss of control during takeoff for reasons that could not be determined. 1
The pilot’s improper attempt at a low-pass maneuver, which resulted in a collision with a tractor.\r 1
The over-tensioning of the accessory belt, which resulted in damage to the starter adapter and subsequent loss of oil that led to oil starvation and catastrophic engine failure.\r 1
The partial loss of engine power during initial climb due to the No. 3 cylinder exhaust valve becoming stuck open due to deposit buildup in the exhaust valve stem and guide and the pilot’s exceedance of the airplane’s critical angle of attack while attempting to turn back to the airport, which resulted in an aerodynamic stall. \r 1
The pilot's improper landing in the tailwheel-equipped airplane, which allowed an excessive load on the tailwheel and resulted in the subsequent component fracture, loss of control, runway excursion, and impact with terrain.\r\n\r\n\r 1
The failure of the pilot and flight instructor to maintain aircraft control while maneuvering in the traffic pattern. 1
The failure of a connecting rod small end bushing, which resulted in a loss of engine power. 1
The pilot's failure to extend the landing gear before landing, which resulted in a gear-up landing and a runway overrun. 1
The pilot's impairment or incapacitation by symptoms of an acute cardiac event, which resulted in a loss of control. 1
The pilot receiving instruction’s failure to maintain directional control during landing.\r 1
The improper rigging of the tailwheel assembly, which resulted in a loss of directional control during takeoff. Contributing to accident was the pilot’s decision to operate the airplane despite knowing it required excessive right rudder inputs for it to move straight ahead. 1
The pilot's failure to maintain a proper descent rate, which resulted in a bounced landing, and his subsequent failure to attain a proper airspeed during an attempted go-around in shifting wind conditions, which resulted in an aerodynamic stall. 1
The pilot’s failure to maintain main rotor clearance from a power line tower during low-level maneuvering.\r 1
The flight instructor's failure to ensure that the wing flaps were properly configured for takeoff, which resulted in an aerodynamic stall and loss of control during the initial climb. 1
The pilot's failure to account for operation at high density altitude at or near the airplane’s maximum gross weight, which led to degraded engine performance and prevented the airplane from achieving an adequate airspeed for a positive rate of climb, resulting in a forced off-airport landing. \r 1
A leak in the gascolator, which allowed air to enter the fuel system and resulted in a partial loss of engine power. 1
The pilot's exceedance of the airplane's critical angle of attack during a go-around. Contributing to the accident was the pilot's decision to attempt to close a passenger door during a critical phase of flight.\r\n\r 1
The pilot’s exceedance of the biplane’s critical angle of attack during initial climb, which resulted in an aerodynamic stall and collision with trees.\r\n\r 1
The pilot's loss of helicopter control after entry into vortex ring state, leading to a high rate of descent to the ground with a right spin. Contributing to the accident was the pilot's lack of recent and recurrent training in vortex ring state recognition and recovery. 1
The student pilot’s failure to maintain directional control during takeoff in gusting wind conditions after passing a large hill.\r 1
The pilot’s improper recovery from a bounced landing, which resulted in a loss of directional control. \r 1
The pilot’s improper landing flare in crosswind conditions, which resulted in a bounced landing, and his subsequent failure to maintain directional control during the landing roll. \r\n\r 1
An improper replacement of the crankshaft by maintenance personnel, which resulted in a failure of the crankshaft gear and total loss of engine power. 1
A stuck exhaust valve, which resulted in the failure of the valve and a loss of engine power. Contributing to the valve failure and loss of engine power was the extended time since the last overhaul.\r 1
The total loss of engine power due to fuel starvation. \r 1
A partial loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.\r 1
The pilot’s selection of unsuitable terrain for landing which resulted in a nose over.\r 1
A total loss of engine power for reasons that could not be determined based on the available evidence. 1
The pilot's failure to see and avoid power lines while maneuvering at low altitude. 1
Maintenance personnel's failure to ensure the proper throttle linkage travel clearance after the installation of an exhaust system.\r 1
the Delta B737 captain's failure to maintain proper clearance between his airplane and the stopped American B757. 1
The pilot's improper decision to attempt a visual flight rules flight in instrument meteorological conditions, below a low overcast ceiling, which resulted in controlled flight into terrain. 1
The pilot's improper takeoff configuration due to his failure to follow the pretakeoff checklist, which resulted in a loss of lift and collision with obstacles.\r\n\r\n \r\n\r 1
The pilot's improper landing flare, which resulted in a bounded landing and subsequent loss of directional control. 1
The pilot’s use of excessive braking during the landing roll, which resulted in a nose-over.\r\n\r 1
\r\nA total loss of engine power due to the fracture of a single 1st stage compressor rotor airfoil in high-cycle fatigue as a result of the erosion and thinning of the airfoil's leading edge. Contributing to the fractured airfoil and loss of engine power was the operator’s decision to operate the engine past the manufacturer’s recommended time between overhaul.\r 1
The student pilot's failure to maintain aircraft control during a go-around, which resulted in impact with water. Contributing to the accident was the non-instructor sport pilot's decision to allow the student pilot to fly the aircraft. 1
The pilot's incapacitation due to fainting as a result of complications from a previously undiagnosed heart condition. 1
The physical interference of the student pilot’s headset control unit with the canopy, which prevented the canopy latches from seating properly and resulted in the canopy opening in flight and the subsequent hard landing.\r\n\r 1
The partial loss of engine power due to carburetor icing and the pilot's inability to maintain adequate airspeed during the soft-field takeoff, which resulted in an exceedance of the airplane's critical angle-of-attack and an aerodynamic stall. 1
A design change in the helicopter's fly-by-wire control system that resulted in an increase in the sensitivity of the cyclic stick while transitioning from ground to flight mode, magnifying the pilot's control inputs, which resulted in unintentional over control in the roll axis, upper and lower main rotor contact, and damage to the rotor blades.\r 1
The ground crewmember’s failure to fully engage the tow hook release arm during preflight, which resulted in the premature release of the glider at insufficient altitude to complete a safe landing.\r 1
The airplane’s encounter with a downdraft while maneuvering at a low altitude, which resulted in the exceedance of the airplane’s critical angle of attack and a subsequent aerodynamic stall.\r\n\r 1
The pilot's improper decision to conduct the flight despite the fuel gauges indicating that there was insufficient fuel for the flight, which resulted in the low amount of fuel in the right tank becoming unported during the multiple turns, and his subsequent improper decision to switch to the nearly empty left tank, which led to a loss of engine power due to fuel starvation. 1
The pilot’s failure to maintain directional control of the airplane during the landing roll, which resulted in a runway excursion.\r\n\r 1
The pilot's failure to maintain directional control during the landing roll with a quartering tailwind. 1
The pilot’s failure to maintain a proper touchdown attitude, which resulted in a loss of directional control during the landing roll. \r 1
A loss of engine power for reasons that could not be determined based on available evidence. 1
The pilot's failure to maintain adequate altitude above water, and his loss of situational awareness, which resulted in an inadvertent descent and collision with water. \r 1
The pilot’s failure to maintain clearance from a steel frame attached to a tracked drilling unit. Contributing to the accident was the pilot’s failure to visually identify the steel frame during the reconnaissance process. \r\n
\r 1
The pilot's failure to attain adequate airspeed during an attempted go-around, which resulted in an aerodynamic stall. 1
A separation of the left tire from its wheel because of the use of an improper substance and wheel size, which resulted in a loss of directional control during landing. 1
The pilot’s improper decision to depart in unfavorable weather conditions, which resulted in a hard, forced landing.\r\n\r 1
The pilot’s failure to maintain directional control during landing in variable wind conditions.\r\n\r 1
The pilot's inability to accurately monitor the airplane's airspeed after takeoff due to an inoperative airspeed indicator, which resulted in the pilot's failure to maintain adequate airspeed and his exceedance of the airplane's critical angle of attack and the subsequent aerodynamic stall/mush and degraded climb performance. 1
The pilot's loss of pitch attitude and ground proximity awareness, which resulted in an unintentionally steep initial climb and an overcorrection into a steep descent and ground impact. \r\n\r\n\r 1
The pilot’s improper landing flare while landing on water with glassy water conditions, which resulted in the airplane nosing over.\r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing.\r\n\r\n \r\n\r 1
The pilot’s failure to maintain directional control during the landing roll and the flight instructor’s use of excessive braking, which led to a nose-over. \r\n\r 1
The pilot’s decision to depart during high, gusty wind conditions which resulted sink and subsequent impact with terrain. 1
The pilot’s failure to follow the before takeoff checklist, which resulted in an improper takeoff configuration and subsequent uncontrolled descent into terrain during a departure climb. \r 1
The pilot's selection of unsuitable terrain for landing, which resulted in the right main landing (MLG) tire impacting a rock and the subsequent loss of directional control and collapse of the right MLG.\r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.\r 1
Maintenance personnel's failure to secure hardware, which resulted in an uncommanded upward deflection of the left elevator and aft movement of the control yoke and inhibited the flight crew from adjusting the airplane's pitch attitude in flight. Contributing to the accident was the lack of maintenance oversight, which should have identified the unsecured hardware before flight.\r\n\r\n \r\n\r\n \r\n\r 1
The pilot's improper preflight setup of the aircraft's foldable wing, during which he incorrectly attached a nylon strap loop pull handle, instead of the steel cable shackle at the end of the strap, to its mounting hook. The nylon strap failed in flight, resulting in a partial collapse of the wing and the aircraft's descent and impact with terrain. 1
The student pilot's improper decision to conduct a night flight and his failure to maintain adequate altitude during the approach, which resulted in controlled flight into trees and terrain. Contributing to the accident was the student pilot's lack of total and recent night flight experience. 1
The pilot’s improper installation of the control stick hardware, which resulted in a loss of elevator control in flight. 1
The pilot’s failure to maintain clearance from trees while maneuvering at a low altitude.\r\n\r 1
The pilot's failure to obtain an updated weather briefing before the flight and his subsequent loss of airplane control due to spatial disorientation while maneuvering in instrument meteorological conditions during a diversion to an alternate airport after encountering forecast icing conditions. 1
The pilot’s improper use of the fuel selector, which resulted in fuel starvation to the engine and an off-runway landing.\r\n\r 1
The pilot's failure to correctly identify the runway environment during an instrument approach at night in instrument meteorological conditions because he mistook building lights for runway lights, which resulted in landing short of the runway. \r 1
The student pilot's failure to relinquish the flight controls during landing when the flight instructor told him to do so, and the instructor’s subsequent inability to properly control the glider, which led to a hard landing.\r 1
The pilot's operation of the airplane with the alternator switch in the off position, which allowed the selected battery to discharge and resulted in an ignition system failure and a total loss of engine power.\r 1
An impact with terrain for reasons that could not be determined based on the available information. 1
The pilot's loss of directional control during the landing roll and his subsequent attempted go-around.\r\n\r\n\r 1
The pilot's improper decision to continue the flight in deteriorating weather conditions, which resulted in an inadvertent entry into a box canyon and subsequent controlled flight into mountainous terrain. 1
The pilot’s failure to maintain lateral control after landing on water in gusting wind conditions.\r\n\r 1
the catering cart striking the flight attendant's foot. 1
The pilot’s failure to see and avoid a sand bar during a water takeoff, which resulted in the airplane impacting a river bank.\r\n\r 1
The pilot's descent below minimum descent altitude during the nonprecision instrument approach for reasons that could not be determined based on the available information. 1
The pilot's failure to maintain airplane control while maneuvering which resulted in the airplane exceeding its critical angle of attack and an accelerated stall. 1
a passenger leaving a bag in the aisle that the flight attendant tripped over. 1
The operator's decision to allow a flight in an airplane with known, unresolved maintenance discrepancies, and the flight crew's failure to properly configure the airplane in a way that would have allowed the emergency or parking brake systems to stop the airplane during landing. 1
The pilot's failure to avoid wake turbulence from a crossing heavy airplane.\r 1
The total loss of engine power due to fuel exhaustion. 1
A total loss of engine power after the separation of the No. 3 cylinder from the crankcase due to improper maintenance.\r 1
The pilot’s failure to maintain centerline in dusk light conditions which resulted in impact with trees. \r 1
The pilot's failure to maintain main rotor speed after setting the engine fuel control to idle, which resulted in a loss of helicopter control and impact with water. 1
The inability of the pilot of the Piper and the student pilot and flight instructor of the Diamond to see and avoid the other airplane. Contributing to the collision was the Piper pilot’s failure to use the correct common traffic advisory frequency to announce his airplane's position.\r 1
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s improper fuel management, which resulted in fuel starvation and the subsequent total loss of engine power.\r\n\r 1
The pilot's failure to maintain the proper descent rate during landing. Contributing to the accident were the pilot’s failure to conduct preflight performance calculations, which resulted in his operating the helicopter in high-density altitude conditions, and his lack of experience in high-altitude, mountainous flying. \r 1
The pilot’s improper retraction of the flaps during a go-around, which resulted in the airplane’s failure to climb and its subsequent collision with trees.\r 1
The pilot's failure to maintain directional control during the takeoff roll with crosswind conditions. \r\n\r\n\r 1
A total loss of engine power during initial climb due to fuel starvation.\r 1
The pilot's failure to maintain adequate airspeed and the exceedance of the airplane's critical angle of attack during a turn, which resulted in an aerodynamic stall and subsequent loss of control. Contributing to the accident was an undetermined engine anomaly. \r\n \r\n\r 1
The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack while making a turn in gusting wind conditions while flying through hilly terrain, which resulted in an aerodynamic stall. \r 1
The pilot's decision to land with insufficient runway remaining to stop, which resulted in a runway overrun.\r 1
The pilot's attempt to move the helicopter from a sloped surface after an overspeed event, which resulted in a loss of helicopter control and impact with a car. The overspeed event resulted from misrouted and damaged wiring in the magneto, which subsequently resulted in errant and random signals to the governor. 1
Maintenance personnel’s improper installation of the muffler attachment hardware, which resulted in the muffler separating in flight, thermal damage that interrupted the magnetos’ function, and the subsequent total loss of engine power.\r 1
The total loss of engine power due to carburetor icing, which resulted from the pilot's failure to use carburetor heat while operating at low power settings in conditions conducive to the formation of carburetor ice.\r 1
A loss of directional control during landing due to overstress failure of the left seat’s left rudder pedal arm clevis, which occurred as a result of manufacturing defects. \r 1
Loss of engine power due to water in the fuel lines. \r 1
The pilot’s selection of an unsuitable off-airport landing area, which resulted in a ground loop.\r\n\r 1
A partial loss of engine power that was the result of a loss of compression in the No. 1 and 4 cylinders due to damage and material separation from the exhaust valve heads, which resulted in a subsequent forced, hard landing. Contributing to the accident was inadequate maintenance inspection.\r 1
an inadvertent encounter with wake turbulence. 1
The separation of the left inboard main landing gear (MLG) attachment bolt due to insufficient torque, which resulted in the collapse of the left MLG. 1
The pilot's failure to maintain clearance with a hangar while maneuvering to his hangar. Contributing to the accident was the pilot's limited experience in helicopters. \r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack during an attempted go-around after the airplane bounced, which resulted in an aerodynamic stall.\r 1
The student pilot’s failure to maintain the runway heading during takeoff and the flight instructor’s decision to conduct primary flight instruction in an airplane without dual controls.\r 1
The pilot’s improper landing flare, which resulted in a hard, bounced landing and subsequent loss of directional control on an unimproved airstrip.\r 1
A fuel leak from the carburetor float bowl due to a missing plug, which resulted in excessive fuel consumption and a total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's decision to depart on the accident flight leg after noting the airplane's unexpectedly high fuel consumption during the previous leg.\r 1
The pilot of the race 13 airplane's failure to maintain clearance from the race 37 airplane during the closed course air race.\r 1
The failure of the landing gear extension motor due to wear, which resulted in the right main landing gear not fully extending and locking into place during landing. Contributing to the accident was the pilot’s failure to ensure that all three landing gear were down and locked before landing. \r 1
The pilot's inadequate preflight planning before takeoff in the high density altitude conditions, which resulted in the airplane being unable to maintain sufficient airspeed to continue to climb. 1
The pilots' loss of control during an instrument approach in instrument meteorological conditions as a result of spatial disorientation. 1
The pilot’s failure to maintain lateral control of the airplane during landing, which resulted in a loss of directional control and subsequent runway excursion. \r 1
The pilot’s failure to yield to traffic established on the taxiway, which resulted in a ground collision.\r\n\r\n\r 1
The pilot's failure to properly secure his seat before initiating the takeoff, which resulted in the seat sliding back as the airplane accelerated during takeoff, his inability to reach the pedals, and the subsequent loss of directional control and impact with trees and shrubs. 1
The pilot's loss of directional control during landing.\r\n\r\n\r 1
The pilot’s exceedance of the airplane’s critical angle of attack during the landing flare, which resulted in an aerodynamic stall.\r\n\r 1
Loss of engine power due to fuel contamination. \r 1
The pilot’s failure to maintain directional control during the landing roll in tailwind and crosswind conditions. Contributing to the accident was the pilot’s fatigue.\r\n\r 1
The pilot's failure to maintain a proper descent rate, which resulted in a hard landing.\r\n\r\n\r 1
The student pilot's mismanagement of the fuel selector valve during the simulated forced landing demonstration and the flight instructor's inadequate supervision to ensure the fuel selector was properly set, which resulted in a loss of engine power and subsequent forced landing on unsuitable terrain. 1
The pilot's improper landing flare, which resulted in the airplane porpoising.\r\n\r\n\r 1
Fatigue failure of the No. 1 cylinder intake valve, which resulted in the loss of engine power. 1
The pilot's failure to use carburetor heat in conditions conducive to serious carburetor icing at glide power, which resulted in a partial loss of power and an aerodynamic stall.\r 1
The pilot's improper fuel management during the landing approach, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was his failure to follow the published emergency procedures after the loss of engine power.\r 1
The pilot’s selection of an empty fuel tank for takeoff, which resulted in fuel starvation and the subsequent total loss of engine power.\r\n\r 1
The ground crewmember's improper grabbing of the hovering helicopter's skid during an external load hook-up, which resulted in the helicopter descending and the main rotors striking ground equipment. \r 1
A total loss of engine power due to fuel exhaustion and the pilot's subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's decision to initiate and continue the flight into dark night conditions with a known electrical problem. 1
The pilot’s failure to maintain clearance from a power line pole during an agricultural application flight.\r\n\r 1
The pilot's failure to maintain directional control of the airplane during landing.\r\n\r\n\r 1
The pilot's failure to maintain clearance from trees during a visual approach for landing. Contributing to the accident was the pilot's distraction during the approach.\r 1
The pilot under instruction’s failure to maintain the twin-engine airplane’s minimum control airspeed with one engine inoperative and the flight instructor’s distraction when reconfiguring the airplane following the simulated engine failure, which resulted in no power being available to the left engine and a loss of control during landing when the throttles were advanced to increase airspeed. \r\n\r\n\r\n\r 1
The pilot’s failure to maintain clearance from a vehicle while taxiing for departure. \r 1
The pilot's improper engine modification and operation, which resulted in a total loss of engine power due to fuel starvation, and the pilot's failure to maintain an adequate approach path, which resulted in the airplane landing short of the runway.\r\n\r\n\r 1
The loss of engine power due to excessive fuel flow. 1
The pilot's improper decision to attempt to take off from a lake in high crosswind conditions, which resulted in the right wing lifting, the left wing impacting the water, and the airplane bouncing and then impacting the water hard. \r 1
The pilot's failure to maintain a proper approach path, which resulted a collision with trees short of the runway.\r 1
The pilot’s improper inflight fuel management, which resulted in a total loss of engine power due to fuel starvation and the pilot’s failure to maintain adequate airspeed, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall at a low altitude.\r 1
The pilot's loss of airplane control as a result of spatial disorientation and the exceedance of the structural capabilities of the airplane. Contributing to the accident was the pilot's limited experience in instrument conditions. 1
The pilot's inadequate preflight and inflight fuel planning and his decision to continue flight without stopping for fuel, which resulted in a total loss of engine power due to fuel exhaustion. 1
The instructor's decision to conduct and continue a visual flight rules flight into instrument meteorological conditions with a known flight instrument anomaly, which resulted in spatial disorientation, causing a loss of airplane control and subsequent in-flight breakup. Contributing to the accident were the instructor's lack of recent instrument flight experience and degraded airplane control and decision-making due to hypoxia. 1
A total loss of engine power due to a carburetor malfunction, which resulted in a forced landing.\r 1
The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and impact with a taxiway sign.\r 1
The pilot's exceedance of the airplane's critical angle of attack while maneuvering for landing, which resulted in an aerodynamic stall/spin and a subsequent loss of control.\r\n\r 1
The partial loss of engine power for reasons that could not be determined based on the available information. 1
The pilot's improper landing flare in gusting crosswind conditions, which resulted in a hard, bounced landing and his subsequent failure to maintain directional control.\r\n\r 1
The student pilot’s failure to maintain directional control during the landing roll. \r 1
The pilot's failure to maintain directional control during landing, which resulted in a ground loop. \r 1
The student pilot's improper pitch application, which resulted in a hard landing and subsequent fire. Contributing to the accident was the student’s failure to give over the flight controls to the flight instructor when instructed to do so.\r\n\r\n\r 1
The pilot's failure to maintain clearance from trees while taxiing.\r\n\r\n\r 1
The pilot's failure to activate the airplane’s auxiliary fuel pump, which resulted in fuel starvation and a total loss of engine power. Contributing to the accident were the impairing effects of the pilot’s medication on his performance. \r 1
The pilot’s inadvertent brake application, which resulted in a loss of directional control and a subsequent nose-over.\r\n\r 1
The improper torque application and ongoing inspection of an oil filter adaptor by maintenance personnel, which resulted in a loss of lubrication and a catastrophic engine failure. \r 1
A total loss of engine power due to carburetor icing, the pilot's delayed application of carburetor heat, and the pilot's delay in entering an autorotation following the loss of engine power, which resulted in a main rotor stall due to low rotor rpm and an uncontrolled descent into terrain. 1
The stuck No. 2 cylinder exhaust valve, which resulted in a partial loss of engine power and a subsequent forced landing and impact with a ditch. 1
The pilot’s failure to utilize carburetor heat in conditions conducive to the formation of carburetor icing, which resulted in a total loss of engine power.\r 1
The student pilot's improper landing flare, which resulted in the airplane landing sideways and a subsequent runway excursion. \r\n\r 1
The pilot's improper landing flare, which resulted in a bounced landing and his subsequent failure to maintain directional control. Also causal to the accident was the pilot’s failure to retract the flaps during the aborted landing, which resulted in the airplane’s failure to climb and a subsequent collision with trees.\r\n\r\n\r 1
The pilot’s failure to extend the landing gear, which resulted in an attempted go-around and subsequent pitchdown and impact with the runway.\r 1
A loss of engine power for reasons that could not be determined, and the pilot's subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall at low altitude. 1
The student pilot's improper decision to maneuver the airplane through an area of construction and his subsequent failure to maintain clearance from a concrete pole barrier while taxiing.\r 1
The total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation. Contributing to the outcome was the student pilot's improper decision to conduct a solo cross-country flight at night, which resulted in the airplane being destroyed when it impacted a wooded area that the student thought was an open field. 1
The pilot's failure to maintain clearance from the antenna tower, a known obstruction, during the agricultural application flight. Contributing to the accident was glare from the sun which hindered the pilot's ability to see and avoid the antenna tower. 1
The pilot's loss of attitude orientation while maneuvering at low altitude in dark night visual meteorological conditions, which resulted in impact with terrain. 1
The pilot receiving instruction’s improper flare during landing and the flight instructor’s inadequate remedial action, which resulted in the airplane exceeding its critical angle-of-attach and experiencing an aerodynamic stall. \r 1
The non-instrument-rated pilot's improper decision to undertake a flight into forecast instrument meteorological conditions (IMC) and his subsequent decision to continue the flight after encountering IMC, which resulted in controlled flight into terrain. Contributing to the accident were the pilot's depression and use of impairing/sedating medications, which resulted in poor decision-making. 1
The pilot's improper landing flare, which resulted in a hard, bounced landing and the nose gear collapsing.\r 1
The pilot's improper landing flare, which resulted in the weight-shift-controlled aircraft landing crooked on a turf runway. \r 1
The pilot’s failure to maintain directional control during takeoff in gusting crosswind conditions.\r 1
A total loss of engine power during initial climb due to carburetor ice that formed during an extended ground delay.\r 1
The pilot’s unstabilized approach and improper landing flare, which resulted in a hard landing.\r 1
The pilot's failure to maintain clearance from an obstacle during takeoff. 1
The pilot's improper decision to attempt a gear-up glide to the runway and his subsequent failure to extend the landing gear before landing. Contributing to the accident was the pilot's failure to use a checklist before landing.\r\n\r\n\r 1
The pilot’s failure to maintain an adequate approach path at night after an electrical failure, which resulted in the airplane striking runway lights.\r\n\r 1
The pilot's failure to see and avoid a cow on the airstrip during landing. \r 1
The fatigue failure of the No. 3 cylinder exhaust valve, which resulted in a fractured camshaft and a total loss of engine power. 1
The pilot’s failure to maintain directional control while landing in a gusting crosswind conditions. \r 1
The student pilot's failure to maintain directional control during takeoff. \r 1
The pilot's improper takeoff trim setting and failure to properly secure his seatbelt, which resulted in a loss of airplane control. Contributing to the accident was the pilot's failure to follow the Before Takeoff checklist. 1
The pilot's improper landing flare, which resulted in a hard, bounced landing and a subsequent runway excursion. \r\n\r\n\r 1
The pilot's inadequate in-flight fuel management, which resulted in fuel starvation and the subsequent loss of engine power, and her subsequent failure to maintain clearance from trees during the approach to land at a nearby airstrip.\r\n \r\n\r\n\r 1
A vehicle's incursion onto an active runway, which resulted in an evasive action by the pilot landing an airplane on that runway and a subsequent runway excursion. \r\n\r 1
The pilot's mismanagement of collective pitch control during takeoff from an area with numerous obstacles, which resulted in the helicopter entering a low rotor rpm state and a forced hard landing.\r 1
The pilot’s improper preflight fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power.\r 1
The student pilot's decision to fly the weight-shift-controlled airplane with no training in the airplane type, which resulted in a loss of control and impact with terrain shortly after takeoff.\r 1
The pilot's selection of unsuitable terrain for takeoff, which resulted in a collision with vegetation and a subsequent loss of directional control.\r\n\r\n\r 1
The pilot's failure to maintain directional control during takeoff in a left quartering tailwind. \r 1
The balloon tipping over during deflation, which resulted in a passenger injury.\r\n\r 1
The pilot's improper landing flare in gusting crosswind conditions, his failure to conduct a go-around, and his failure to maintain directional control, which resulted in a runway departure and nose-over. \r 1
The pilot’s failure to see and avoid power wires during approach.\r\n\r 1
The pilot's failure to maintain the proper pitch attitude and adequate airspeed during takeoff, which resulted in an aerodynamic stall.\r 1
The airplane’s impact with a bird while entering the traffic pattern.\r 1
The pilot’s failure to properly estimate the height of terrain while descending the balloon, which resulted in the balloon impacting a hill and passengers sustaining serious injuries.\r\n\r\n\r 1
The pilot’s inadvertent application of the brakes, which resulted in a nose-over.\r 1
The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control in gusting, right quartering tailwind conditions. \r 1
The pilot's improper landing flare, which resulted in a bounced landing. \r 1
The mechanic’s failure to properly align the engine exhaust crossover pipe during replacement, and his supervisor’s failure to properly inspect the installation, which resulted in an in-flight fire and the loss of engine power.\r 1
The pilot's failure to maintain directional control during the landing roll when the left main landing gear wheel got caught in a ditch, which resulted in a subsequent nose-over.\r\n \r\n\r 1
The disconnection of the brake cylinder actuator rod, which resulted in the pilot’s inability to maintain directional control during the landing roll.\r\n\r\n\r 1
The pilot's exceedance of the airplane's critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall, loss of control, and impact with terrain.\r 1
The pilot’s failure to maintain directional control during a crosswind landing, which resulted in the airplane exiting the runway and impacting a ditch, tree, and fence.\r 1
A loss of engine power due to fuel exhaustion and the pilot's failure to ensure that the left-wing fuel cap was secure before flight. Contributing to the accident was the pilot's failure to monitor fuel levels while in flight. 1
An exceedance of the airplane's critical angle of attack while maneuvering for landing, which resulted in an aerodynamic stall/spin at an altitude too low for recovery.\r\n\r\n\r\n\r\n \r\n\r\n \r\n\r 1
The pilot’s failure to maintain directional control during takeoff in a crosswind.\r\n\r 1
A total loss of engine power due to fuel starvation as a result of the flight instructor's inadequate preflight inspection.\r 1
The flight instructor’s failure to maintain lateral control of the weight-shift-controlled aircraft during the landing flare.\r\n\r 1
The failure of both pilots to see and avoid a power line while maneuvering at low altitude. Contributing to the accident was the flight instructor's decision to not follow the training syllabus and allow the low-level high-speed flight. 1
A loss of engine power due to fuel starvation during a steep turn with a low fuel state.\r 1
The total loss of engine power for reasons that could not be determined based on the available evidence, which resulted in a forced landing on unsuitable terrain. \r 1
The student pilot's overshoot of the runway, which resulted from her misperception of an engine issue due to her failure to maintain proper pitch control during initial climb.\r 1
The pilot's decision to enter a spin without sufficient altitude to recover. Also causal to the accident was the pilot's inadequate preflight weight and balance calculations, which placed the airplane outside the normal and acrobatic category flight envelope, effecting the spin and recovery characteristics. \r\n\r 1
The pilot's failure to maintain clearance from power lines during an aerial observation flight. \r 1
The pilot's failure to use carburetor heat during a low-power setti